Schedule 13G/A                                    Page _____ of _____ Pages
                                                          1       12







                                   UNITED STATES
                         SECURITIES AND EXCHANGE COMMISSION
                               Washington, D.C. 20549


                                    SCHEDULE 13G

                      Under the Securities Exchange Act of 1934
                                 (Amendment No. ___)*
                                                 12







                           AIR PRODUCTS & CHEMICALS, INC.
                 ___________________________________________________
                                  (Name of Issuer)


                                    COMMON SHARES
                 ___________________________________________________
                           (Title of Class of Securities)


                                      009158106
                 ___________________________________________________
                                   (Cusip Number)
                                     12/31/2001
                 ___________________________________________________
               (Date of Event Which Requires Filing of this Statement)



 Check the appropriate box to designate the rule pursuant to which this
 Schedule is filed:

 [X] Rule 13d-1(b)
 [ ] Rule 13d-1(c)
 [ ] Rule 13d-1(d)

 *The remainder of this cover page shall be filled out for a reporting
 person's initial filing on this form with respect to the subject class
 of securities, and for any subsequent amendment containing information
 which would alter the disclosures provided in a prior cover page.

 The information required in the remainder of this cover page shall not
 be deemed to be "filed" for the purpose of Section 18 of the Securities
 Exchange Act of 1934 ("Act") or otherwise subject to the liabilities
 of that section of the Act but shall be subject to all other provisions
 of the Act (however, see the Notes).

 Schedule 13G                                      Page _____ of _____ Pages
                                                          2       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Mutual Automobile Insurance Company 37-0533100
___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization: Illinois
___________________________________________________
 Number of    5.  Sole Voting Power: 7,018,600
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 0
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 7,018,600
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 143,394
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 7,161,994
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 3.15  %
___________________________________________________
12.  Type of Reporting Person: IC

 Schedule 13G                                      Page _____ of _____ Pages
                                                          3       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Life Insurance Company 37-0533090
___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization: Illinois
___________________________________________________
 Number of    5.  Sole Voting Power: 172,900
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 0
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 172,900
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 2,944
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 175,844
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 0.07  %
___________________________________________________
12.  Type of Reporting Person: IC

 Schedule 13G                                      Page _____ of _____ Pages
                                                          4       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Fire and Casualty Company 37-0533080
___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization: Illinois
___________________________________________________
 Number of    5.  Sole Voting Power: 1,701,200
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 0
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 1,701,200
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 7,435
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 1,708,635
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 0.75  %
___________________________________________________
12.  Type of Reporting Person: IC

 Schedule 13G                                      Page _____ of _____ Pages
                                                          5       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Investment Management Corp. 37-0902469
___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization: Delaware
___________________________________________________
 Number of    5.  Sole Voting Power: 1,060,000
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 6,935
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 1,060,000
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 6,935
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 1,066,935
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 0.46  %
___________________________________________________
12.  Type of Reporting Person: IA

 Schedule 13G                                      Page _____ of _____ Pages
                                                          6       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Insurance Companies Employee Retirement Trust 36-6042145
___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization: Illinois
___________________________________________________
 Number of    5.  Sole Voting Power: 4,000,000
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 0
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 4,000,000
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 5,430
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 4,005,430
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 1.76  %
___________________________________________________
12.  Type of Reporting Person: EP

 Schedule 13G                                      Page _____ of _____ Pages
                                                          7       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Insurance Companies Savings and Thrift Plan for U.S.
         Employees  37-6091823

___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization: Illinois
___________________________________________________
 Number of    5.  Sole Voting Power: 1,376,800
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 0
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 1,376,800
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 0
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 1,376,800
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 0.60  %
___________________________________________________
12.  Type of Reporting Person: EP

 Schedule 13G                                      Page _____ of _____ Pages
                                                          8       12

CUSIP No. ___009158106           ___
___________________________________________________
 1.  Name of Reporting Person and I.R.S. Identification No.:
     State Farm Mutual Fund Trust
___________________________________________________
 2.  Check the appropriate box if a Member of a Group
     (a) _____
     (b) __X__
___________________________________________________
 3.  SEC USE ONLY:
___________________________________________________
 4.  Citizenship or Place of Organization:
___________________________________________________
 Number of    5.  Sole Voting Power: 8,700
 Shares       ___________________________________________________
 Beneficially 6.  Shared Voting Power: 0
 Owned by     ___________________________________________________
 Each         7.  Sole Dispositive Power: 8,700
 Reporting    ___________________________________________________
 Person With  8.  Shared Dispositive Power: 0
___________________________________________________
 9.  Aggregate Amount Beneficially Owned by each Reporting Person: 8,700
___________________________________________________
10.  Check Box if the Aggregate Amount in Row 9 excludes Certain Shares: ____
___________________________________________________
11.  Percent of Class Represented by Amount in Row 9: 0.00  %
___________________________________________________
12.  Type of Reporting Person: IV

 Schedule 13G                                      Page _____ of _____ Pages
                                                          9       12



Item 1(a) and (b).  Name and Address of Issuer & Principal Executive Offices:
                    _________________________________________________________
                   AIR PRODUCTS & CHEMICALS, INC.
                   7201 HAMILTON BLVD.
                   ALLENTOWN, PA  18195-1501

Item 2(a).  Name of Person Filing: State Farm Mutual Automobile Insurance
            _____________________
                                   Company and related entities;  See Item 8
                                   and Exhibit A

Item 2(b).  Address of Principal Business Office: One State Farm Plaza
            ____________________________________
                                                  Bloomington, IL 61710

Item 2(c).  Citizenship: United States
            ___________

Item 2(d) and (e).  Title of Class of Securities and Cusip Number: See above.
                    _____________________________________________

Item 3.  This Schedule is being filed, in accordance with 240.13d-1(b).
         _____________________________________________________________
         See Exhibit A attached.

Item 4(a).  Amount Beneficially Owned: 15,504,338 shares
            _________________________

Item 4(b).  Percent of Class: 6.82 percent pursuant to Rule 13d-3(d)(1).
            ________________

Item 4(c).  Number of shares as to which such person has:
            ____________________________________________
           (i) Sole Power to vote or to direct the vote: 15,338,200
           (ii) Shared power to vote or to direct the vote:  6,935
           (iii) Sole Power to dispose or to direct disposition of: 15,338,200
           (iv) Shared Power to dispose or to direct disposition of: 166,138

Item 5.  Ownership of Five Percent or less of a Class: Not Applicable.
         ____________________________________________

Item 6.  Ownership of More than Five Percent on Behalf of Another Person: N/A
         _______________________________________________________________

Item 7.  Identification and Classification of the Subsidiary Which Acquired
         __________________________________________________________________
         the Security being Reported on by the Parent Holding Company: N/A
         ______________________________________________________________

Item 8.  Identification and Classification of Members of the Group:
         _________________________________________________________
         See Exhibit A attached.

Item 9.  Notice of Dissolution of Group:  N/A
         ______________________________

 Schedule 13G                                      Page _____ of _____ Pages
                                                         10       12



  Item 10.  Certification.  By signing below I certify that, to the best of
  my knowledge and belief, the securities referred to above were
  acquired in the ordinary course of business and were not acquired
  for the purpose of and do not have the effect of changing or
  influencing the control of the issuer of such securities and were
  not acquired in connection with or as a participant in any
  transaction having such purpose or effect.

                                      Signature
  After reasonable inquiry and to the best of my knowledge and belief,
  I certify that the information set forth in this statement is true,
  complete and correct.



              01/29/2002                   STATE FARM MUTUAL AUTOMOBILE
  _________________________________
                 Date                        INSURANCE COMPANY

                                           STATE FARM LIFE INSURANCE COMPANY

                                           STATE FARM FIRE AND CASUALTY
                                             COMPANY

  STATE FARM INSURANCE COMPANIES           STATE FARM INVESTMENT MANAGEMENT
    EMPLOYEE RETIREMENT TRUST                CORP.

  STATE FARM INSURANCE COMPANIES           STATE FARM ASSOCIATES FUNDS
    SAVINGS AND THRIFT PLAN FOR              TRUST - STATE FARM GROWTH FUND
    U.S. EMPLOYEES
                                           STATE FARM ASSOCIATES FUNDS
                                             TRUST - STATE FARM BALANCED
                                             FUND

                                           STATE FARM MUTUAL FUND TRUST

                                           STATE FARM VARIABLE PRODUCT TRUST





        /s/ Paul N. Eckley
  _________________________________                 /s/ Paul N. Eckley
                                           _________________________________
     Paul N. Eckley, Fiduciary of            Paul N. Eckley, Vice President
          each of the above                       of each of the above

 Schedule 13G                                      Page _____ of _____ Pages
                                                         11       12

                            EXHIBIT A


This Exhibit lists the entities affiliated with State Farm Mutual
Automobile Insurance Company which might be deemed to constitute a
"group" with regard to the ownership of shares reported herein.  By
way of explanation, State Farm Mutual Automobile Insurance Company is
the parent of wholly owned subsidiaries, State Farm Life Insurance
Company, which is the parent of the wholly owned subsidiary State Farm
Life and Accident Assurance Company;  State Farm Fire and Casualty
Company; and, State Farm Investment Management Corp.  State Farm
Investment Management Corp. acts as the investment advisor to State
Farm Associates Funds Trust - State Farm Growth Fund and State Farm
Associates Funds Trust - State Farm Balanced Fund , State Farm
Variable Product Trust, and State Farm Mutual Fund Trust.  The
Investment Committees of the Board of Directors of each of the
insurance companies and of the State Farm Investment Management Corp.
and the Trustees of the State Farm Insurance Companies Employee
Retirement Trust, State Farm Insurance Companies Savings and Thrift
Plan for U.S. Employees, State Farm Variable Product Trust, and State
Farm Mutual Fund Trust are vested with the responsibility for
investing the assets of the companies, the Funds, the Trusts, and the
Equities Account and the Balanced Account of the State Farm Insurance
Companies Savings and Thrift Plan for U.S. Employees.  State Farm
Mutual Automobile Insurance Company employs all personnel of the
Investment Department.  State Farm Investment Management Corp. has a
written agreement with State Farm Mutual Automobile Insurance Company
whereby the Investment Department personnel assist State Farm
Investment Management Corp. in its duties as investment advisor to the
Funds, State Farm Variable Product Trust, and State Farm Mutual Fund
Trust.  Investment actions taken by the Investment Department are
ratified by the Investment Committees of the Boards of Directors of
the insurance companies and State Farm Investment Management Corp. and
by the Trustees of the Trusts and the Plan.  Certain members of the
Investment Department also execute voting proxies from time to time
but in situations where a vote contrary to that of management on a
major policy matter is under consideration, approval of the Investment
Committees of the Boards of Directors of the Companies involved is
first obtained.

Pursuant to Rule 13d-4 each person listed in the table below
expressly disclaims "beneficial ownership" as to all shares as to
which such person has no right to receive the proceeds of sale of the
security and disclaims that it is part of a "group".


 Schedule 13G                                      Page _____ of _____ Pages
                                                         12       12


                                                               Number of
                                                              Shares based
                                             Classification   on Proceeds
Name                                          Under Item 3      of Sale
____                                         ______________   ____________

State Farm Mutual Automobile Insurance Company   IC         7,161,994 shares
State Farm Life Insurance Company                IC           175,844 shares
State Farm Life and Accident Assurance Company   IC                 0 shares
State Farm Fire and Casualty Company             IC         1,708,635 shares
State Farm Investment Management Corp.           IA                 0 shares
State Farm Associates Funds Trust - State
    Farm Growth Fund                             IV           830,000 shares
State Farm Associates Funds Trust - State
    Farm Balanced Fund                           IV           230,000 shares
State Farm Variable Product Trust                IV             6,935 shares
State Farm Insurance Companies Employee
    Retirement Trust                             EP         4,005,430 shares
State Farm Insurance Companies Savings and
    Thrift Plan for U.S. Employees               EP
  Equities Account                                          1,120,800 shares
  Balanced Account                                            256,000 shares
State Farm Mutual Fund Trust                     IV             8,700 shares
                                                    -----------------
                                                           15,504,338 shares