| Date | Acquired | Amount |
|---|---|---|
| Jan 09, 2006 |
|
Undisclosed amount |
| Sep 01, 2005 |
|
Undisclosed amount |
| May 12, 2004 |
|
$ 49,000,000 |
| Jun 10, 2003 |
|
$ 225,000,000 |
