| Date | Acquired | Amount |
|---|---|---|
| Jul 19, 2011 |
|
Undisclosed amount |
| May 04, 2011 |
|
Undisclosed amount |
| Nov 01, 2010 |
|
Undisclosed amount |
| Apr 05, 2010 |
|
Undisclosed amount |
| Jan 04, 2010 |
|
Undisclosed amount |
| Mar 14, 2002 |
|
$ 5,000,000 |
| Jul 13, 2000 |
|
Undisclosed amount |
| Jun 03, 1998 |
|
$ 18,390,000 |
| Jun 01, 1998 |
|
Undisclosed amount |
| May 19, 1998 |
|
Undisclosed amount |
