| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 7 |
3.6%
|
| 1 | 3 |
1.6%
|
|
| 2 | 16 |
8.3%
|
|
| 3 | 13 |
6.7%
|
|
| 4 | 40 |
20.7%
|
|
| 5 | 12 |
6.2%
|
|
| 6 | 19 |
9.8%
|
|
| 7 | 7 |
3.6%
|
|
| 8 | 30 |
15.5%
|
|
| 9 | 1 |
0.5%
|
|
| 10 | 11 |
5.7%
|
|
| 11 | 1 |
0.5%
|
|
| 12 | 17 |
8.8%
|
|
| 13 | 1 |
0.5%
|
|
| 14 | 2 |
1%
|
|
| 15 | 5 |
2.6%
|
|
| 16 | 2 |
1%
|
|
| 17 | 1 |
0.5%
|
|
| 20 | 3 |
1.6%
|
|
| 21 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| Sysmiss | 1176 |