| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
1.4%
|
| 1 | 4 |
1.4%
|
|
| 3 | 1 |
0.3%
|
|
| 5 | 12 |
4.1%
|
|
| 7 | 1 |
0.3%
|
|
| 10 | 7 |
2.4%
|
|
| 15 | 1 |
0.3%
|
|
| 20 | 10 |
3.4%
|
|
| 25 | 5 |
1.7%
|
|
| 30 | 2 |
0.7%
|
|
| 33 | 4 |
1.4%
|
|
| 36 | 1 |
0.3%
|
|
| 40 | 12 |
4.1%
|
|
| 45 | 4 |
1.4%
|
|
| 47 | 1 |
0.3%
|
|
| 50 | 72 |
24.5%
|
|
| 51 | 4 |
1.4%
|
|
| 64 | 1 |
0.3%
|
|
| 65 | 2 |
0.7%
|
|
| 80 | 6 |
2%
|
|
| 90 | 2 |
0.7%
|
|
| 92 | 1 |
0.3%
|
|
| 100 | 137 |
46.6%
|
|
| Sysmiss | 672 |