| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 22, 2021 | Nov 2, 2016 | 811-22534 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2016 | Oct 11, 2013 | 811-22742 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 22, 2015 | Oct 15, 2013 | 811-22742 |