| Date | Acquired | Amount |
|---|---|---|
| May 24, 2016 |
|
Undisclosed amount |
| Jan 01, 2016 |
|
Undisclosed amount |
| Feb 19, 2015 |
|
$ 20,000,000 |
| Jun 10, 2014 |
|
Undisclosed amount |
| Mar 11, 2014 |
|
$ 3,000,000 |
| Nov 08, 2007 |
|
Undisclosed amount |
