| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 5 |
7.5%
|
| 0 | 20 |
29.9%
|
|
| 1 | 7 |
10.4%
|
|
| 2 | 12 |
17.9%
|
|
| 3 | 5 |
7.5%
|
|
| 4 | 4 |
6%
|
|
| 5 | 3 |
4.5%
|
|
| 6 | 3 |
4.5%
|
|
| 7 | 1 |
1.5%
|
|
| 8 | 1 |
1.5%
|
|
| 10 | 1 |
1.5%
|
|
| 12 | 1 |
1.5%
|
|
| 15 | 2 |
3%
|
|
| 29 | 1 |
1.5%
|
|
| 60 | 1 |
1.5%
|
|
| Sysmiss | 84 |