| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
4.3%
|
| 1 | 8 |
4.9%
|
|
| 2 | 6 |
3.7%
|
|
| 3 | 5 |
3.1%
|
|
| 4 | 8 |
4.9%
|
|
| 5 | 37 |
22.7%
|
|
| 6 | 7 |
4.3%
|
|
| 7 | 5 |
3.1%
|
|
| 8 | 4 |
2.5%
|
|
| 9 | 5 |
3.1%
|
|
| 10 | 17 |
10.4%
|
|
| 12 | 2 |
1.2%
|
|
| 13 | 1 |
0.6%
|
|
| 14 | 1 |
0.6%
|
|
| 15 | 21 |
12.9%
|
|
| 16 | 1 |
0.6%
|
|
| 18 | 6 |
3.7%
|
|
| 20 | 12 |
7.4%
|
|
| 30 | 3 |
1.8%
|
|
| 35 | 1 |
0.6%
|
|
| 40 | 2 |
1.2%
|
|
| 50 | 3 |
1.8%
|
|
| 60 | 1 |
0.6%
|
|
| Sysmiss | 1269 |