| Value | Category | Cases | |
|---|---|---|---|
| -88 | Don’t know | 3 |
0.1%
|
| 0 | 0 | 4 |
0.1%
|
| 1 | 1 | 320 |
10.2%
|
| 2 | 2 | 2685 |
85.9%
|
| 3 | 3 | 114 |
3.6%
|
| Sysmiss | 218 |