| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
6.6%
|
| 0 | 51 |
27.9%
|
|
| 1 | 11 |
6%
|
|
| 2 | 12 |
6.6%
|
|
| 3 | 11 |
6%
|
|
| 4 | 4 |
2.2%
|
|
| 5 | 21 |
11.5%
|
|
| 7 | 1 |
0.5%
|
|
| 8 | 1 |
0.5%
|
|
| 9 | 1 |
0.5%
|
|
| 10 | 20 |
10.9%
|
|
| 15 | 6 |
3.3%
|
|
| 20 | 13 |
7.1%
|
|
| 25 | 2 |
1.1%
|
|
| 30 | 5 |
2.7%
|
|
| 35 | 1 |
0.5%
|
|
| 36 | 1 |
0.5%
|
|
| 40 | 1 |
0.5%
|
|
| 50 | 2 |
1.1%
|
|
| 60 | 2 |
1.1%
|
|
| 80 | 3 |
1.6%
|
|
| 100 | 2 |
1.1%
|
|
| Sysmiss | 1542 |