| Type | Filed | |
|---|---|---|
| 4 | 2012-04-16 | EDGAR |
| 4 | 2012-04-13 | EDGAR |
| 4 | 2012-04-11 | EDGAR |
| 4 | 2012-04-06 | EDGAR |
| 4 | 2012-03-30 | EDGAR |
| 4 | 2012-03-22 | EDGAR |
| 4 | 2012-03-16 | EDGAR |
| 4 | 2012-03-12 | EDGAR |
| 4 | 2012-03-06 | EDGAR |
| 4 | 2012-03-02 | EDGAR |
| 4 | 2012-02-29 | EDGAR |
| 3 | 2012-02-24 | EDGAR |
| 4 | 2012-02-24 | EDGAR |
| 4 | 2012-02-23 | EDGAR |
| 4 | 2012-02-16 | EDGAR |
| 4 | 2012-02-13 | EDGAR |
| 4 | 2012-02-13 | EDGAR |
| 4 | 2012-02-03 | EDGAR |
| 4 | 2012-01-27 | EDGAR |
| 3 | 2012-01-26 | EDGAR |