Exhibit 99.1
The table below specifies the date, amount and weighted average price per ADS purchased by Cascade Investment, L.L.C. (“Cascade”) during the past sixty days. Cascade undertakes to provide upon request by the staff of the Securities and Exchange Commission full information regarding the number of ADSs purchased at each separate price. All transactions were effected in the open market on the New York Stock Exchange or through Electronic Communication Networks.
Date of Purchase |
| Number of ADSs Purchased |
| Weighted Average Price Paid Per ADS ($) |
| Range of Price Paid ($) | ||
3/2/2011 |
| 5,450 |
| 73.45 |
| 72.94 | - | 73.80 |
3/2/2011 |
| 4,550 |
| 74.9925 |
| 74.98 | - | 74.9950 |
3/3/2011 |
| 2,760 |
| 75.6888 |
| 75.10 | - | 75.99 |
3/3/2011 |
| 5,990 |
| 76.2524 |
| 76.1150 | - | 76.39 |
3/4/2011 |
| 9,200 |
| 75.6971 |
| 75.14 | - | 76.12 |
3/4/2011 |
| 800 |
| 76.4644 |
| 76.16 | - | 76.75 |
3/7/2011 |
| 67,300 |
| 74.78 |
| 74.30 | - | 75.28 |
3/7/2011 |
| 600 |
| 75.52 |
| 75.35 | - | 75.71 |
