| Date | Amount |
|---|---|
| 06/17/2016 | 7.27 |
| 02/01/2016 | 7.27 |
| 06/15/2015 | 7.69 |
| 02/12/2015 | 7.69 |
| 06/04/2014 | 12.66 |
| 01/27/2014 | 12.66 |
| 06/06/2013 | 14.95 |
| 02/04/2013 | 14.95 |
| 01/30/2012 | 36.68 |
| 02/03/2011 | 33.40 |
| 01/25/2010 | 36.82 |
| 02/02/2009 | 34.64 |
| 01/25/2008 | 33.40 |
| 01/12/2007 | 54.00 |
| 02/06/2006 | 48.00 |
| 02/07/2005 | 22.44 |
| 02/11/2004 | 24.34 |
| 01/30/2003 | 21.78 |
| 02/14/2002 | 20.80 |
| 01/26/2001 | 20.46 |