| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
6.4%
|
| 0 | 139 |
68.1%
|
|
| 1 | 1 |
0.5%
|
|
| 3 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 8 | 1 |
0.5%
|
|
| 10 | 5 |
2.5%
|
|
| 15 | 2 |
1%
|
|
| 20 | 9 |
4.4%
|
|
| 25 | 2 |
1%
|
|
| 30 | 2 |
1%
|
|
| 40 | 4 |
2%
|
|
| 50 | 7 |
3.4%
|
|
| 60 | 4 |
2%
|
|
| 70 | 1 |
0.5%
|
|
| 80 | 2 |
1%
|
|
| 90 | 1 |
0.5%
|
|
| 95 | 2 |
1%
|
|
| 96 | 1 |
0.5%
|
|
| 97 | 1 |
0.5%
|
|
| 100 | 5 |
2.5%
|
|
| Sysmiss | 157 |