| Date | Acquired | Amount |
|---|---|---|
| Dec 13, 2016 |
|
Undisclosed amount |
| Dec 13, 2016 |
|
Undisclosed amount |
| Apr 27, 2015 |
|
$ 7,500,000 |
| Apr 15, 2014 |
|
Undisclosed amount |
| Mar 19, 2014 |
|
Undisclosed amount |
| Nov 19, 2012 |
|
Undisclosed amount |
| Jul 09, 2012 |
|
Undisclosed amount |
| Jan 24, 2011 |
|
Undisclosed amount |
| Dec 20, 2010 |
|
Undisclosed amount |
| Jul 19, 2010 |
|
Undisclosed amount |
| May 09, 2009 |
|
Undisclosed amount |
| May 09, 2009 |
|
Undisclosed amount |
