| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/06/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 29 | |
| 03/29/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 02/15/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 | |
| 02/13/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 | |
| 02/12/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 4 | |
| 01/19/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 28 | |
| 12/29/17 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 31 | |
| 12/29/17 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 33 | |
| 12/29/17 | 20-F | Form 20-F: Annual and transition report of foreign private issuers [Sections 13 or 15(d)] | 131 | |
| 11/22/17 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 |
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