| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 49 |
14.5%
|
| 2 | 1 |
0.3%
|
|
| 3 | 2 |
0.6%
|
|
| 7 | 9 |
2.7%
|
|
| 8 | 2 |
0.6%
|
|
| 10 | 23 |
6.8%
|
|
| 12 | 5 |
1.5%
|
|
| 14 | 8 |
2.4%
|
|
| 15 | 47 |
13.9%
|
|
| 16 | 1 |
0.3%
|
|
| 18 | 3 |
0.9%
|
|
| 20 | 69 |
20.4%
|
|
| 21 | 6 |
1.8%
|
|
| 25 | 3 |
0.9%
|
|
| 30 | 66 |
19.5%
|
|
| 35 | 1 |
0.3%
|
|
| 40 | 7 |
2.1%
|
|
| 45 | 5 |
1.5%
|
|
| 50 | 1 |
0.3%
|
|
| 60 | 24 |
7.1%
|
|
| 90 | 4 |
1.2%
|
|
| 120 | 1 |
0.3%
|
|
| 150 | 1 |
0.3%
|
|
| 395 | 1 |
0.3%
|
|
| Sysmiss | 877 |