| Value | Category | Cases | |
|---|---|---|---|
| 1 | Now | 0 |
0%
|
| 2 | Later | 12 |
0.4%
|
| 3 | Not at all | 2 |
0.1%
|
| 5 | miss | 13 |
0.4%
|
| 7 | Refusal | 0 |
0%
|
| 9 | na | 3124 |
99.1%
|
| Sysmiss | 1485 |