| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 77 |
29.2%
|
| 1 | 56 |
21.2%
|
|
| 2 | 38 |
14.4%
|
|
| 3 | 14 |
5.3%
|
|
| 4 | 12 |
4.5%
|
|
| 5 | 15 |
5.7%
|
|
| 6 | 5 |
1.9%
|
|
| 7 | 3 |
1.1%
|
|
| 8 | 2 |
0.8%
|
|
| 9 | 2 |
0.8%
|
|
| 10 | 13 |
4.9%
|
|
| 11 | 1 |
0.4%
|
|
| 12 | 3 |
1.1%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 3 |
1.1%
|
|
| 16 | 1 |
0.4%
|
|
| 18 | 1 |
0.4%
|
|
| 20 | 7 |
2.7%
|
|
| 21 | 2 |
0.8%
|
|
| 22 | 1 |
0.4%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 2 |
0.8%
|
|
| 40 | 3 |
1.1%
|
|
| 50 | 1 |
0.4%
|
|
| Sysmiss | 1105 |