| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| May 20, 2008 | 515.00 | 525.00 | 505.00 | 520.00 | 10.4K |
| May 19, 2008 | 525.00 | 540.00 | 520.00 | 535.00 | 5.8K |
| May 16, 2008 | 525.00 | 545.00 | 515.00 | 540.00 | 4.4K |
| May 15, 2008 | 535.00 | 540.00 | 515.00 |
| 540.00 |
| 6.6K |
| May 14, 2008 | 540.00 | 540.00 | 530.00 | 535.00 | 800 |
| May 13, 2008 | 545.00 | 545.00 | 530.00 | 540.00 | 4K |
| May 12, 2008 | 530.00 | 560.00 | 530.00 | 545.00 | 4K |
| May 9, 2008 | 550.00 | 550.00 | 530.00 | 545.00 | 3.2K |
| May 8, 2008 | 550.00 | 550.00 | 525.00 | 550.00 | 5K |
| May 7, 2008 | 525.00 | 540.00 | 525.00 | 540.00 | 3.4K |
| May 2, 2008 | 520.00 | 530.00 | 510.00 | 525.00 | 3.8K |
| May 1, 2008 | 520.00 | 525.00 | 520.00 | 520.00 | 800 |
| Apr 30, 2008 | 530.00 | 530.00 | 530.00 | 530.00 | 600 |
| Apr 28, 2008 | 530.00 | 530.00 | 530.00 | 530.00 | 400 |
| Apr 25, 2008 | 540.00 | 540.00 | 515.00 | 530.00 | 5K |
| Apr 24, 2008 | 535.00 | 545.00 | 530.00 | 545.00 | 600 |
| Apr 23, 2008 | 560.00 | 560.00 | 520.00 | 535.00 | 8.4K |
| Apr 22, 2008 | 535.00 | 560.00 | 535.00 | 560.00 | 4.8K |
| Apr 21, 2008 | 530.00 | 555.00 | 520.00 | 540.00 | 4.8K |
| Apr 18, 2008 | 535.00 | 535.00 | 495.50 | 525.00 | 3.6K |
| Apr 17, 2008 | 525.00 | 545.00 | 525.00 | 540.00 | 2K |
| Apr 16, 2008 | 505.00 | 530.00 | 505.00 | 505.00 | 0 |
| Apr 15, 2008 | 515.00 | 525.00 | 505.00 | 525.00 | 1.2K |
| Apr 14, 2008 | 515.00 | 535.00 | 515.00 | 515.00 | 0 |
| Apr 11, 2008 | 505.00 | 540.00 | 505.00 | 540.00 | 1K |
| Apr 10, 2008 | 535.00 | 535.00 | 505.00 | 535.00 | 8.8K |
| Apr 9, 2008 | 525.00 | 545.00 | 525.00 | 545.00 | 3.2K |
| Apr 8, 2008 | 550.00 | 555.00 | 550.00 | 550.00 | 600 |
| Apr 7, 2008 | 540.00 | 555.00 | 540.00 | 550.00 | 1.4K |
| Apr 4, 2008 | 550.00 | 550.00 | 550.00 | 550.00 | 200 |