| Value | Category | Cases | |
|---|---|---|---|
| 0 | 633 |
3%
|
|
| 1 | 10 |
0%
|
|
| 2 | 1 |
0%
|
|
| 6 | 2 |
0%
|
|
| 9 | 1 |
0%
|
|
| 98 | Do not know | 114 |
0.5%
|
| 99 | Unspecified | 20429 |
96.4%
|