| Type | Filed | |
|---|---|---|
| 4 | 2012-01-09 | EDGAR |
| 3 | 2011-12-28 | EDGAR |
| 4 | 2011-08-09 | EDGAR |
| 3 | 2011-07-28 | EDGAR |
| 4 | 2011-04-27 | EDGAR |
| 3 | 2011-04-20 | EDGAR |
| 4 | 2011-03-18 | EDGAR |
| 3 | 2011-02-18 | EDGAR |
| 3 | 2010-11-18 | EDGAR |
| 4 | 2010-01-19 | EDGAR |
| 3 | 2009-08-06 | EDGAR |
| 3 | 2009-02-10 | EDGAR |
| 3 | 2009-01-12 | EDGAR |
| 3 | 2008-06-27 | EDGAR |
| 3 | 2008-06-20 | EDGAR |
| 3 | 2008-06-20 | EDGAR |
| 3 | 2008-06-20 | EDGAR |
| 3 | 2007-11-13 | EDGAR |
| 3 | 2007-11-09 | EDGAR |
| 3 | 2007-11-09 | EDGAR |