X0202 4 2008-01-29 0 0001060349 GAMCO INVESTORS, INC. ET AL GBL 0001052192 CASCADE INVESTMENT LLC 2365 CARILLON POINT KIRKLAND WA 98033 0 0 1 0 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 0 0 1 0 Class A Common Stock 2008-01-29 4 S 0 200 60.05 D 159079 D Class A Common Stock 2008-01-29 4 S 0 1600 60.02 D 157479 D Class A Common Stock 2008-01-29 4 S 0 934 60.00 D 156545 D Class A Common Stock 2008-01-29 4 S 0 1500 59.90 D 155045 D Class A Common Stock 2008-01-29 4 S 0 1800 59.83 D 153245 D Class A Common Stock 2008-01-29 4 S 0 1500 59.82 D 151745 D Class A Common Stock 2008-01-29 4 S 0 2500 59.80 D 149245 D Class A Common Stock 2008-01-29 4 S 0 2800 59.77 D 146445 D Class A Common Stock 2008-01-29 4 S 0 2600 59.67 D 143845 D Class A Common Stock 2008-01-29 4 S 0 1600 59.66 D 142245 D Class A Common Stock 2008-01-29 4 S 0 2500 59.63 D 139745 D Class A Common Stock 2008-01-29 4 S 0 1628 59.56 D 138117 D Class A Common Stock 2008-01-29 4 S 0 4000 59.49 D 134117 D Class A Common Stock 2008-01-29 4 S 0 2700 59.48 D 131417 D Class A Common Stock 2008-01-29 4 S 0 272 59.47 D 131145 D Class A Common Stock 2008-01-29 4 S 0 100 59.46 D 131045 D Class A Common Stock 2008-01-29 4 S 0 1800 59.44 D 129245 D Class A Common Stock 2008-01-29 4 S 0 1600 59.38 D 127645 D Class A Common Stock 2008-01-29 4 S 0 100 59.36 D 127545 D Class A Common Stock 2008-01-29 4 S 0 2500 59.32 D 125045 D Class A Common Stock 2008-01-29 4 S 0 1500 59.30 D 123545 D Class A Common Stock 2008-01-29 4 S 0 200 59.30 D 123345 D Class A Common Stock 2008-01-29 4 S 0 2600 59.04 D 120745 D Class A Common Stock 2008-01-29 4 S 0 2600 58.67 D 118145 D * Duly authorized under Special Power of Attorney, appointing Michael Larson attorney-in-fact, dated February 3, 2006, by and on behalf of William H. Gates III, filed as Exhibit 99.1 to Cascade Investment, L.L.C.'s Amendment No. 2 to Schedule 13G with respect to Arch Capital Group Ltd. on March 7, 2006, SEC File No. 005-45257, and incorporated by reference herein. Cascade Investment, L.L.C. By: /s/ Michael Larson, Business Manager 2008-01-31 William H. Gates III By: /s/ Michael Larson* Attorney-In-Fact 2008-01-31