| Date | Acquired | Amount |
|---|---|---|
| Feb 05, 2014 |
|
Undisclosed amount |
| Dec 08, 2009 |
|
Undisclosed amount |
| Jan 06, 2006 |
|
Undisclosed amount |
| Jul 29, 2003 |
|
Undisclosed amount |
| May 31, 2001 |
|
Undisclosed amount |
