| Date | Type | Link |
|---|---|---|
| 2014-02-28 | HTML | download report |
| 2015-02-28 | HTML | download report |
| 2016-02-29 | HTML | download report |
| 2018-05-31 | HTML | download report |
| 2019-05-31 | HTML | download report |
| 2020-05-31 | HTML | download report |
| 2021-05-31 | HTML | download report |
| 2022-05-31 | HTML | download report |