| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 37 |
27.8%
|
| 0 | 14 |
10.5%
|
|
| 1 | 6 |
4.5%
|
|
| 2 | 12 |
9%
|
|
| 3 | 3 |
2.3%
|
|
| 4 | 6 |
4.5%
|
|
| 5 | 8 |
6%
|
|
| 6 | 2 |
1.5%
|
|
| 7 | 1 |
0.8%
|
|
| 8 | 4 |
3%
|
|
| 9 | 2 |
1.5%
|
|
| 10 | 5 |
3.8%
|
|
| 16 | 1 |
0.8%
|
|
| 20 | 5 |
3.8%
|
|
| 21 | 1 |
0.8%
|
|
| 23 | 1 |
0.8%
|
|
| 28 | 1 |
0.8%
|
|
| 30 | 4 |
3%
|
|
| 32 | 1 |
0.8%
|
|
| 40 | 1 |
0.8%
|
|
| 44 | 1 |
0.8%
|
|
| 45 | 1 |
0.8%
|
|
| 50 | 2 |
1.5%
|
|
| 80 | 2 |
1.5%
|
|
| 84 | 1 |
0.8%
|
|
| 86 | 1 |
0.8%
|
|
| 87 | 1 |
0.8%
|
|
| 100 | 2 |
1.5%
|
|
| 109 | 1 |
0.8%
|
|
| 156 | 1 |
0.8%
|
|
| 180 | 1 |
0.8%
|
|
| 182 | 1 |
0.8%
|
|
| 200 | 1 |
0.8%
|
|
| 297 | 1 |
0.8%
|
|
| 500 | 1 |
0.8%
|
|
| Sysmiss | 227 |