| Date | Acquired | Amount |
|---|---|---|
| Jun 06, 2016 |
|
$ 4,500,000 |
| Apr 12, 2016 |
|
$ 39,000,000 |
| Jul 22, 2015 |
|
Undisclosed amount |
| Oct 08, 2014 |
|
Undisclosed amount |
| Dec 09, 2013 |
|
$ 35,000,000 |
| Mar 16, 2006 |
|
Undisclosed amount |
| Oct 05, 2005 |
|
Undisclosed amount |
| Jun 06, 2005 |
|
$ 525,000,000 |
| Jun 01, 2005 |
|
$ 560,000,000 |
| Sep 05, 1997 |
|
$ 75,000,000 |
