| Date | Acquired | Amount |
|---|---|---|
| Feb 01, 2017 |
|
$ 8,000,000 |
| Sep 08, 2013 |
|
Undisclosed amount |
| Dec 21, 2011 |
|
$ 3,000,000 |
| Mar 02, 2011 |
|
$ 23,000,000 |
| Jan 28, 2011 |
|
$ 26,000,000 |
| Jun 06, 2006 |
|
Undisclosed amount |
