| Date | Acquired | Amount |
|---|---|---|
| Jul 17, 2002 |
|
$ 12,000,000 |
| Jan 02, 2002 |
|
$ 106,000,000 |
| Jul 19, 2001 |
|
Undisclosed amount |
| Sep 13, 2000 |
|
$ 1,300,000,000 |
