 |  | 

|  |  | 

| Date | Shares | Price | Proceeds |
| March, 2008 |
5,000,000 |
$15.00 |
$75,000,000 |
| December, 2006 |
6,000,000 |
$15.91 |
$95,400,000 |
| May, 2006 |
4,300,000 |
$13.83 |
$59,000,000 |
| July, 2005 |
5,000,000 |
$7.60 |
$38,000,000 |
| December, 2004 |
2,000,000 |
$6.75 |
$13,500,000 |
| February, 2004 |
3,000,000 |
$6.30 |
$18,900,000 |
| November, 2003 |
3,500,000 |
$2.90 |
$10,150,000 |
|  |  |  |