| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 24 |
9.9%
|
| 2 | 57 |
23.5%
|
|
| 3 | 43 |
17.7%
|
|
| 4 | 24 |
9.9%
|
|
| 5 | 27 |
11.1%
|
|
| 6 | 9 |
3.7%
|
|
| 7 | 7 |
2.9%
|
|
| 8 | 11 |
4.5%
|
|
| 9 | 5 |
2.1%
|
|
| 10 | 3 |
1.2%
|
|
| 11 | 1 |
0.4%
|
|
| 13 | 1 |
0.4%
|
|
| 14 | 2 |
0.8%
|
|
| 15 | 1 |
0.4%
|
|
| 17 | 2 |
0.8%
|
|
| 18 | 1 |
0.4%
|
|
| 20 | 3 |
1.2%
|
|
| 22 | 1 |
0.4%
|
|
| 24 | 1 |
0.4%
|
|
| 27 | 1 |
0.4%
|
|
| 30 | 3 |
1.2%
|
|
| 45 | 2 |
0.8%
|
|
| 47 | 1 |
0.4%
|
|
| 54 | 1 |
0.4%
|
|
| 65 | 1 |
0.4%
|
|
| 100 | 2 |
0.8%
|
|
| 110 | 1 |
0.4%
|
|
| 150 | 1 |
0.4%
|
|
| 300 | 1 |
0.4%
|
|
| 320 | 2 |
0.8%
|
|
| 329 | 2 |
0.8%
|
|
| 399 | 1 |
0.4%
|
|
| 600 | 1 |
0.4%
|
|
| Sysmiss | 759 |