| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.5%
|
| 0 | 82 |
41.6%
|
|
| 1 | 32 |
16.2%
|
|
| 2 | 22 |
11.2%
|
|
| 3 | 10 |
5.1%
|
|
| 4 | 4 |
2%
|
|
| 5 | 9 |
4.6%
|
|
| 6 | 5 |
2.5%
|
|
| 7 | 1 |
0.5%
|
|
| 8 | 2 |
1%
|
|
| 10 | 11 |
5.6%
|
|
| 12 | 1 |
0.5%
|
|
| 15 | 1 |
0.5%
|
|
| 20 | 6 |
3%
|
|
| 25 | 4 |
2%
|
|
| 26 | 1 |
0.5%
|
|
| 30 | 1 |
0.5%
|
|
| 35 | 1 |
0.5%
|
|
| 50 | 2 |
1%
|
|
| 75 | 1 |
0.5%
|
|
| Sysmiss | 452 |