| Date | Amount |
|---|---|
| 06/17/2016 | 5.79 |
| 02/01/2016 | 5.79 |
| 06/15/2015 | 6.39 |
| 02/12/2015 | 6.39 |
| 06/04/2014 | 11.05 |
| 01/27/2014 | 11.05 |
| 06/06/2013 | 15.88 |
| 02/04/2013 | 15.88 |
| 01/30/2012 | 30.36 |
| 02/03/2011 | 34.42 |
| 01/25/2010 | 33.04 |
| 02/12/2009 | 26.18 |
| 01/28/2008 | 22.80 |
| 01/12/2007 | 32.36 |
| 02/06/2006 | 30.18 |
| 02/07/2005 | 23.92 |
| 02/11/2004 | 21.08 |
| 01/30/2003 | 21.18 |
| 02/14/2002 | 16.10 |
| 01/26/2001 | 17.62 |