| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/09/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/08/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/05/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/23/10 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/23/10 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |
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