| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 17 |
0.1%
|
|
| 2013 | 43 |
0.2%
|
|
| 8888 | Not applicable | 24856 |
98.1%
|
| 9999 | Unspecified | 420 |
1.7%
|