| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 52 |
6.8%
|
| 0 | 391 |
50.9%
|
|
| 1 | 101 |
13.2%
|
|
| 2 | 51 |
6.6%
|
|
| 3 | 3 |
0.4%
|
|
| 4 | 4 |
0.5%
|
|
| 5 | 65 |
8.5%
|
|
| 7 | 1 |
0.1%
|
|
| 8 | 2 |
0.3%
|
|
| 10 | 26 |
3.4%
|
|
| 12 | 1 |
0.1%
|
|
| 14 | 1 |
0.1%
|
|
| 15 | 9 |
1.2%
|
|
| 20 | 13 |
1.7%
|
|
| 25 | 6 |
0.8%
|
|
| 30 | 10 |
1.3%
|
|
| 35 | 1 |
0.1%
|
|
| 40 | 5 |
0.7%
|
|
| 50 | 8 |
1%
|
|
| 60 | 3 |
0.4%
|
|
| 70 | 3 |
0.4%
|
|
| 80 | 1 |
0.1%
|
|
| 90 | 2 |
0.3%
|
|
| 95 | 1 |
0.1%
|
|
| 100 | 8 |
1%
|
|
| Sysmiss | 1929 |