| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 47 |
16.3%
|
| 0 | 39 |
13.5%
|
|
| 1 | 10 |
3.5%
|
|
| 2 | 44 |
15.2%
|
|
| 3 | 20 |
6.9%
|
|
| 4 | 25 |
8.7%
|
|
| 5 | 21 |
7.3%
|
|
| 6 | 13 |
4.5%
|
|
| 7 | 2 |
0.7%
|
|
| 8 | 11 |
3.8%
|
|
| 9 | 7 |
2.4%
|
|
| 10 | 14 |
4.8%
|
|
| 12 | 3 |
1%
|
|
| 13 | 3 |
1%
|
|
| 14 | 1 |
0.3%
|
|
| 15 | 5 |
1.7%
|
|
| 16 | 2 |
0.7%
|
|
| 18 | 1 |
0.3%
|
|
| 19 | 2 |
0.7%
|
|
| 20 | 2 |
0.7%
|
|
| 25 | 3 |
1%
|
|
| 26 | 1 |
0.3%
|
|
| 30 | 1 |
0.3%
|
|
| 40 | 3 |
1%
|
|
| 50 | 3 |
1%
|
|
| 60 | 3 |
1%
|
|
| 100 | 1 |
0.3%
|
|
| 150 | 1 |
0.3%
|
|
| 3500 | 1 |
0.3%
|
|
| Sysmiss | 309 |