| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 39 |
15.4%
|
| 0 | 37 |
14.6%
|
|
| 1 | 27 |
10.6%
|
|
| 2 | 39 |
15.4%
|
|
| 3 | 18 |
7.1%
|
|
| 4 | 13 |
5.1%
|
|
| 5 | 17 |
6.7%
|
|
| 6 | 7 |
2.8%
|
|
| 7 | 2 |
0.8%
|
|
| 8 | 3 |
1.2%
|
|
| 9 | 2 |
0.8%
|
|
| 10 | 18 |
7.1%
|
|
| 12 | 1 |
0.4%
|
|
| 13 | 1 |
0.4%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 4 |
1.6%
|
|
| 18 | 1 |
0.4%
|
|
| 20 | 6 |
2.4%
|
|
| 30 | 3 |
1.2%
|
|
| 40 | 2 |
0.8%
|
|
| 50 | 8 |
3.1%
|
|
| 60 | 1 |
0.4%
|
|
| 150 | 1 |
0.4%
|
|
| 200 | 2 |
0.8%
|
|
| 300 | 1 |
0.4%
|
|
| Sysmiss | 347 |