| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| 20-F | Report | ANNUAL REPORT | Mar 30, 2012 | Dec 31, 2011 |
| 20-F | Report | FORM 20-F | Mar 31, 2011 | Dec 31, 2010 |
| 20-F/A | Report | FORM 20-F/A AMENDMENT NO. 1 DATED APRIL 1, 2010 | Apr 1, 2010 | Dec 31, 2009 |
| 20-F | Report | FORM 20-F 2009 | Mar 31, 2010 | Mar 23, 2010 |
| 20-F/A | Report | AMENDMENT NO.2 TO FORM 20-F - DECEMBER 31, 2008 | Feb 2, 2010 | Dec 31, 2008 |