| Value | Category | Cases | |
|---|---|---|---|
| -88 | Don’t know | 5 |
0.2%
|
| 0 | 0 | 9 |
0.3%
|
| 1 | 1 | 2560 |
81.9%
|
| 2 | 2 | 489 |
15.6%
|
| 3 | 3 | 63 |
2%
|
| Sysmiss | 218 |