| Value | Category | Cases | |
|---|---|---|---|
| -95 | N/A have not received the video | 1 |
2.1%
|
| 2015 | 4 |
8.3%
|
|
| 2016 | 5 |
10.4%
|
|
| 2017 | 14 |
29.2%
|
|
| 2018 | 24 |
50%
|
|
| Sysmiss | 72 |