| Value | Category | Cases | |
|---|---|---|---|
| -95 | N/A have not received the video | 1 |
3.1%
|
| 2016 | 3 |
9.4%
|
|
| 2017 | 10 |
31.3%
|
|
| 2018 | 18 |
56.3%
|
|
| Sysmiss | 88 |