| Date | Acquired | Amount |
|---|---|---|
| Oct 23, 2017 |
|
$ 45,000,000 |
| Jan 10, 2017 |
|
Undisclosed amount |
| Nov 02, 2016 |
|
Undisclosed amount |
| Nov 09, 2015 |
|
$ 20,500,000 |
| Oct 06, 2015 |
|
Undisclosed amount |
| Jun 15, 2009 |
|
$ 3,000,000 |
| Jul 25, 2008 |
|
$ 10,000,000 |
| Apr 29, 2008 |
|
$ 30,500,000 |
| Jul 28, 2006 |
|
$ 40,500,000 |
| May 26, 2005 |
|
$ 49,000,000 |
| Mar 30, 2005 |
|
Undisclosed amount |
| Oct 30, 2001 |
|
$ 67,150,000 |
| Jun 01, 2001 |
|
$ 2,400,000 |
| Oct 01, 2000 |
|
$ 7,000,000 |
| Jul 29, 1998 |
|
$ 25,000,000 |
| Sep 29, 1995 |
|
$ 5,500,000 |
| Nov 15, 1993 |
|
$ 6,800,000 |
| Jan 15, 1991 |
|
Undisclosed amount |
