| Date | Acquired | Amount |
|---|---|---|
| Jan 25, 2017 |
|
Undisclosed amount |
| Jan 04, 2016 |
|
$ 46,000,000 |
| Nov 02, 2015 |
|
$ 5,900,000,000 |
| Apr 06, 2009 |
|
Undisclosed amount |
| Nov 10, 2008 |
|
Undisclosed amount |
| Mar 06, 2007 |
|
Undisclosed amount |
| May 09, 2006 |
|
Undisclosed amount |
| Jan 05, 2006 |
|
Undisclosed amount |
| May 25, 2005 |
|
Undisclosed amount |
| Mar 23, 2005 |
|
Undisclosed amount |
| May 22, 2002 |
|
Undisclosed amount |
| Apr 02, 2002 |
|
$ 7,400,000 |
| Jan 01, 2002 |
|
Undisclosed amount |
| Oct 03, 2001 |
|
$ 20,000,000 |
