| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 2 |
5.3%
|
| 0 | 21 |
55.3%
|
|
| 10 | 3 |
7.9%
|
|
| 12 | 2 |
5.3%
|
|
| 16 | 1 |
2.6%
|
|
| 17 | 1 |
2.6%
|
|
| 20 | 1 |
2.6%
|
|
| 25 | 1 |
2.6%
|
|
| 27 | 1 |
2.6%
|
|
| 90 | 1 |
2.6%
|
|
| 110 | 1 |
2.6%
|
|
| 200 | 1 |
2.6%
|
|
| 230 | 1 |
2.6%
|
|
| 750 | 1 |
2.6%
|
|
| Sysmiss | 307 |