| Date | Type | Link |
|---|---|---|
| 2013-04-30 | HTML | download report |
| 2014-04-30 | HTML | download report |
| 2015-04-30 | HTML | download report |
| 2016-04-30 | HTML | download report |
| 2017-05-31 | 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 |