| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 3 |
2.9%
|
| 0 | 13 |
12.7%
|
|
| 1 | 19 |
18.6%
|
|
| 2 | 14 |
13.7%
|
|
| 3 | 13 |
12.7%
|
|
| 4 | 10 |
9.8%
|
|
| 5 | 4 |
3.9%
|
|
| 6 | 2 |
2%
|
|
| 7 | 1 |
1%
|
|
| 9 | 2 |
2%
|
|
| 10 | 1 |
1%
|
|
| 11 | 1 |
1%
|
|
| 12 | 1 |
1%
|
|
| 15 | 5 |
4.9%
|
|
| 16 | 1 |
1%
|
|
| 20 | 4 |
3.9%
|
|
| 24 | 1 |
1%
|
|
| 25 | 1 |
1%
|
|
| 30 | 1 |
1%
|
|
| 42 | 1 |
1%
|
|
| 52 | 1 |
1%
|
|
| 54 | 1 |
1%
|
|
| 60 | 1 |
1%
|
|
| 100 | 1 |
1%
|
|
| Sysmiss | 138 |