| Date | Acquired | Amount |
|---|---|---|
| Nov 20, 2015 |
|
$ 181,000,000 |
| Jul 01, 2015 |
|
Undisclosed amount |
| Sep 04, 2013 |
|
Undisclosed amount |
| Aug 19, 2013 |
|
$ 200,000,000 |
| Oct 23, 2012 |
|
$ 140,000,000 |
| Dec 20, 2011 |
|
$ 225,000,000 |
| Nov 10, 2011 |
|
$ 250,000,000 |
| Sep 26, 2011 |
|
£ 43,800,000 |
| May 21, 2010 |
|
$ 80,000,000 |
| May 05, 2010 |
|
$ 200,000,000 |
| Mar 10, 2008 |
|
$ 68,400,000 |
| Jun 13, 2007 |
|
$ 33,000,000 |
| Mar 02, 2006 |
|
Undisclosed amount |
| Jan 12, 2005 |
|
$ 60,000,000 |
| Jul 02, 2004 |
|
Undisclosed amount |
| Apr 13, 2000 |
|
Undisclosed amount |
