| Date | Acquired | Amount |
|---|---|---|
| Jul 31, 2013 |
|
$ 250,000,000 |
| Jul 20, 2010 |
|
€ 10,000,000 |
| Nov 20, 2006 |
|
$ 420,000,000 |
| Oct 01, 2003 |
|
Undisclosed amount |
