| Date | Acquired | Amount |
|---|---|---|
| Nov 04, 2014 |
|
$ 150,000,000 |
| Sep 19, 2014 |
|
$ 5,500,000 |
| Aug 27, 2013 |
|
$ 500,000,000 |
| Oct 15, 2005 |
|
$ 160,000,000 |
