| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1%
|
| 0 | 80 |
40.8%
|
|
| 1 | 31 |
15.8%
|
|
| 2 | 24 |
12.2%
|
|
| 3 | 5 |
2.6%
|
|
| 4 | 9 |
4.6%
|
|
| 5 | 7 |
3.6%
|
|
| 6 | 6 |
3.1%
|
|
| 7 | 3 |
1.5%
|
|
| 8 | 2 |
1%
|
|
| 9 | 2 |
1%
|
|
| 10 | 3 |
1.5%
|
|
| 15 | 4 |
2%
|
|
| 18 | 1 |
0.5%
|
|
| 20 | 4 |
2%
|
|
| 22 | 1 |
0.5%
|
|
| 28 | 1 |
0.5%
|
|
| 30 | 1 |
0.5%
|
|
| 40 | 2 |
1%
|
|
| 60 | 1 |
0.5%
|
|
| 72 | 1 |
0.5%
|
|
| 91 | 1 |
0.5%
|
|
| 98 | 1 |
0.5%
|
|
| 100 | 1 |
0.5%
|
|
| 110 | 1 |
0.5%
|
|
| 370 | 1 |
0.5%
|
|
| 500 | 1 |
0.5%
|
|
| Sysmiss | 404 |