| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 13 |
37.1%
|
|
| 1 | 3 |
8.6%
|
|
| 2 | 6 |
17.1%
|
|
| 3 | 1 |
2.9%
|
|
| 4 | 1 |
2.9%
|
|
| 5 | 1 |
2.9%
|
|
| 7 | 1 |
2.9%
|
|
| 8 | 1 |
2.9%
|
|
| 10 | 1 |
2.9%
|
|
| 15 | 1 |
2.9%
|
|
| 30 | 1 |
2.9%
|
|
| 35 | 1 |
2.9%
|
|
| 45 | 1 |
2.9%
|
|
| 50 | 1 |
2.9%
|
|
| 60 | 1 |
2.9%
|
|
| 95 | 1 |
2.9%
|
|
| Sysmiss | 327 |