| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 15 |
4.3%
|
| 0 | 150 |
42.7%
|
|
| 1 | 43 |
12.3%
|
|
| 2 | 1 |
0.3%
|
|
| 3 | 1 |
0.3%
|
|
| 4 | 1 |
0.3%
|
|
| 5 | 5 |
1.4%
|
|
| 10 | 18 |
5.1%
|
|
| 12 | 2 |
0.6%
|
|
| 15 | 6 |
1.7%
|
|
| 20 | 16 |
4.6%
|
|
| 25 | 1 |
0.3%
|
|
| 30 | 52 |
14.8%
|
|
| 40 | 9 |
2.6%
|
|
| 45 | 6 |
1.7%
|
|
| 50 | 3 |
0.9%
|
|
| 59 | 22 |
6.3%
|
|
| Sysmiss | 986 |