| Date | Acquired | Amount |
|---|---|---|
| Jul 01, 2011 |
|
Undisclosed amount |
| Jun 30, 2011 |
|
$ 25,000,000 |
| Feb 02, 2011 |
|
$ 251,000 |
| Jul 22, 2010 |
|
Undisclosed amount |
| Mar 31, 2010 |
|
Undisclosed amount |
| Aug 18, 2008 |
|
£ 2,600,000 |
