| Value | Category | Cases | |
|---|---|---|---|
| 0 | 635 |
3%
|
|
| 1 | 4 |
0%
|
|
| 6 | 2 |
0%
|
|
| 9 | 1 |
0%
|
|
| 78 | 1 |
0%
|
|
| 98 | Do not know | 18 |
0.1%
|
| 99 | Unspecified | 20529 |
96.9%
|