| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/22/12 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 3 | |
| 02/22/12 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 02/16/12 | 20-F | Form 20-F: Annual and transition report of foreign private issuers [Sections 13 or 15(d)] | 127 | |
| 02/14/12 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/01/12 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 82 | |
| 01/31/12 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 01/30/12 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 01/04/12 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 3 | |
| 12/29/11 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 23 | |
| 12/29/11 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 3 |
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