| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 36 |
0.2%
|
|
| 2017 | 92 |
0.4%
|
|
| 2018 | 8 |
0%
|
|
| 8888 | Not applicable | 20674 |
98.5%
|
| 9999 | Unspecified | 175 |
0.8%
|