| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 14 |
0.1%
|
|
| 2013 | 29 |
0.1%
|
|
| 2014 | 1 |
0%
|
|
| 8888 | Not applicable | 24838 |
98%
|
| 9999 | Unspecified | 454 |
1.8%
|