| Date | Acquired | Amount |
|---|---|---|
| Feb 08, 2010 |
|
Undisclosed amount |
| Aug 12, 2009 |
|
Undisclosed amount |
| Sep 17, 2007 |
|
€ 150,000,000 |
| Aug 01, 2007 |
|
$ 2,500,000,000 |
| Aug 01, 2006 |
|
Undisclosed amount |
