| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1.4%
|
| 0 | 10 |
7.1%
|
|
| 1 | 5 |
3.6%
|
|
| 2 | 30 |
21.4%
|
|
| 3 | 26 |
18.6%
|
|
| 4 | 11 |
7.9%
|
|
| 5 | 20 |
14.3%
|
|
| 6 | 4 |
2.9%
|
|
| 7 | 6 |
4.3%
|
|
| 8 | 1 |
0.7%
|
|
| 9 | 1 |
0.7%
|
|
| 10 | 4 |
2.9%
|
|
| 12 | 2 |
1.4%
|
|
| 15 | 2 |
1.4%
|
|
| 20 | 5 |
3.6%
|
|
| 24 | 3 |
2.1%
|
|
| 25 | 1 |
0.7%
|
|
| 30 | 1 |
0.7%
|
|
| 56 | 1 |
0.7%
|
|
| 60 | 1 |
0.7%
|
|
| 80 | 1 |
0.7%
|
|
| 120 | 1 |
0.7%
|
|
| 144 | 1 |
0.7%
|
|
| 240 | 1 |
0.7%
|
|
| Sysmiss | 220 |