| Date | Acquired | Amount |
|---|---|---|
| Aug 08, 2017 |
|
Undisclosed amount |
| Jun 15, 2016 |
|
$ 3,000,000 |
| Aug 04, 2009 |
|
Undisclosed amount |
| Feb 07, 2002 |
|
$ 48,000,000 |
| Oct 04, 2000 |
|
Undisclosed amount |
