Exhibit 99.1

The table below specifies the date, quantity and weighted average price per share of Class B Common Stock sold by Bill & Melinda Gates Foundation Trust during the past sixty days.  All of the transactions were affected on the New York Stock Exchange or through Electronic Communication Networks.

Trade Date	Quantity	Weighted Average Price Per Share
5/1/2009	640	$3,049.06
5/4/2009	800	$3,094.14
5/5/2009	400	$3,106.56
5/6/2009	800	$3,079.35
5/7/2009	470	$3,090.22
5/8/2009	1,400	$3,112.15
5/11/2009	200	$3,024.75
5/12/2009	400	$2,961.38
5/13/2009	410	$2,872.76
5/14/2009	1,000	$2,905.31
5/15/2009	800	$2,920.68
5/18/2009	800	$2,943.26
5/19/2009	840	$2,987.86
5/20/2009	500	$3,012.21
5/21/2009	400	$2,936.63
5/22/2009	200	$2,908.01
5/26/2009	1,800	$2,961.38
5/27/2009	1,500	$2,979.39
5/28/2009	1,510	$2,912.48
5/29/2009	2,270	$2,938.67
6/1/2009	500	$3,007.50
6/2/2009	1,100	$2,991.46
6/3/2009	400	$2,973.24
6/4/2009	600	$2,938.25
6/5/2009	810	$2,940.68
6/8/2009	1,590	$2,915.88
6/9/2009	1,000	$2,968.29
6/10/2009	280	$2,960.68
6/11/2009	1,400	$2,949.48
6/12/2009	800	$2,975.70
6/15/2009	600	$2,930.49
6/16/2009	300	$2,920.84
6/17/2009	400	$2,893.50
6/18/2009	300	$2,853.23
6/19/2009	320	$2,824.14
6/22/2009	250	$2,781.64
6/23/2009	969	$2,759.47
6/24/2009	1,000	$2,791.48
6/25/2009	1,100	$2,805.51
6/26/2009	750	$2,813.07
6/29/2009	1,350	$2,813.53
6/30/2009	541	$2,876.64
7/1/2009	800	$2,917.33