| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 18158 |
8.7%
|
| 1 | 1 | 1542 |
0.7%
|
| 8 | Not applicable | 558 |
0.3%
|
| 9 | unspecified | 187744 |
90.3%
|