| Date | Acquired | Amount |
|---|---|---|
| Aug 03, 2016 |
|
$ 225,000,000 |
| May 31, 2016 |
|
$ 56,000,000 |
| Feb 27, 2015 |
|
$ 20,100,000 |
| Feb 04, 2014 |
|
$ 270,000,000 |
| Apr 27, 2011 |
|
$ 80,000,000 |
| Dec 18, 2009 |
|
$ 95,000,000 |
| Apr 10, 2008 |
|
Undisclosed amount |
