| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 41 |
25.6%
|
| 0 | 3 |
1.9%
|
|
| 1 | 1 |
0.6%
|
|
| 2 | 16 |
10%
|
|
| 3 | 12 |
7.5%
|
|
| 4 | 14 |
8.8%
|
|
| 5 | 11 |
6.9%
|
|
| 6 | 4 |
2.5%
|
|
| 7 | 2 |
1.3%
|
|
| 8 | 6 |
3.8%
|
|
| 9 | 3 |
1.9%
|
|
| 10 | 7 |
4.4%
|
|
| 11 | 5 |
3.1%
|
|
| 12 | 4 |
2.5%
|
|
| 14 | 1 |
0.6%
|
|
| 15 | 2 |
1.3%
|
|
| 17 | 1 |
0.6%
|
|
| 18 | 2 |
1.3%
|
|
| 20 | 7 |
4.4%
|
|
| 21 | 1 |
0.6%
|
|
| 22 | 1 |
0.6%
|
|
| 23 | 1 |
0.6%
|
|
| 25 | 3 |
1.9%
|
|
| 26 | 1 |
0.6%
|
|
| 27 | 1 |
0.6%
|
|
| 28 | 1 |
0.6%
|
|
| 30 | 1 |
0.6%
|
|
| 32 | 1 |
0.6%
|
|
| 33 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 40 | 1 |
0.6%
|
|
| 50 | 2 |
1.3%
|
|
| 60 | 1 |
0.6%
|
|
| 274 | 1 |
0.6%
|
|
| Sysmiss | 192 |