| Date | Acquired | Amount |
|---|---|---|
| May 12, 2016 |
|
$ 8,000,000 |
| Dec 22, 2014 |
|
$ 22,000,000 |
| Jan 07, 2010 |
|
Undisclosed amount |
| Sep 01, 2009 |
|
$ 38,300,000 |
| Sep 27, 2005 |
|
$ 13,400,000 |
| Apr 25, 2005 |
|
$ 25,500,000 |
