| Date | Acquired | Amount |
|---|---|---|
| Aug 16, 2016 |
|
Undisclosed amount |
| Aug 04, 2016 |
|
Undisclosed amount |
| Sep 21, 2015 |
|
Undisclosed amount |
| Nov 15, 2008 |
|
Undisclosed amount |
| Aug 13, 2008 |
|
Undisclosed amount |
| Apr 01, 2008 |
|
$ 1,600,000 |
| Jan 31, 2008 |
|
Undisclosed amount |
| Jan 01, 2007 |
|
$ 1,200,000 |
| Oct 01, 2006 |
|
Undisclosed amount |
