| Value | Category | Cases | |
|---|---|---|---|
| 2015 | 38 |
0.2%
|
|
| 2016 | 94 |
0.4%
|
|
| 2017 | 6 |
0%
|
|
| 8888 | Not applicable | 20802 |
98.6%
|
| 9999 | Unspecified | 155 |
0.7%
|