EX-4
from SC 13G/A
1 page
Exhibit I Joint Filing Agreement Each of the Undersigned Hereby Agrees That the Schedule 13g Filed Herewith Is Filed Jointly, Pursuant to Rule 13d-1(f)(1) of the Securities Exchange Act of 1934, as Amended on Behalf of Each of Them. Dated: February 12, 2003 Axa Financial, Inc. By: /S/ Alvin H. Fenichel Alvin H. Fenichel Senior Vice President and Controller Axa Assurances I.A.R.D. Mutuelle; Axa Assurances Vie Mutuelle; Axa Conseil Vie Assurance Mutuelle; Axa Courtage Assurance Mutuelle, as a Group, and Axa Signed on Behalf of Each of the Above Entities By: /S/ Alvin H. Fenichel Alvin H. Fenichel Attorney-In-Fact
12/34/56