| Date | Acquired | Amount |
|---|---|---|
| Feb 29, 2016 |
|
$ 210,000,000 |
| Mar 01, 2010 |
|
$ 1,900,000 |
| Jun 01, 2007 |
|
$ 9,600,000 |
| May 28, 1999 |
|
$ 232,000,000 |
