| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 2 |
0%
|
|
| 2013 | 2 |
0%
|
|
| 2014 | 4 |
0%
|
|
| 2015 | 70 |
0.3%
|
|
| 2016 | 216 |
1%
|
|
| 2017 | 16 |
0.1%
|
|
| 8888 | Not applicable | 20397 |
97.4%
|
| 9999 | Unspecified | 229 |
1.1%
|