| Type | Filed | |
|---|---|---|
| 4 | 2012-05-14 | EDGAR |
| 4 | 2012-05-02 | EDGAR |
| 4 | 2012-04-04 | EDGAR |
| 4 | 2012-04-04 | EDGAR |
| 4 | 2012-04-04 | EDGAR |
| 4 | 2012-03-13 | EDGAR |
| 4 | 2012-03-08 | EDGAR |
| 4 | 2012-03-07 | EDGAR |
| 4 | 2012-03-01 | EDGAR |
| 4 | 2012-03-01 | EDGAR |
| 4 | 2012-02-27 | EDGAR |
| 4 | 2012-02-17 | EDGAR |
| 4 | 2012-02-14 | EDGAR |
| 4 | 2012-02-10 | EDGAR |
| 4 | 2012-02-09 | EDGAR |
| 4 | 2012-02-06 | EDGAR |
| 4 | 2012-02-01 | EDGAR |
| 4 | 2012-01-19 | EDGAR |
| 4 | 2012-01-18 | EDGAR |
| 4 | 2012-01-13 | EDGAR |