| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.5%
|
| 0 | 128 |
65%
|
|
| 1 | 2 |
1%
|
|
| 2 | 1 |
0.5%
|
|
| 3 | 1 |
0.5%
|
|
| 10 | 7 |
3.6%
|
|
| 20 | 13 |
6.6%
|
|
| 25 | 5 |
2.5%
|
|
| 30 | 10 |
5.1%
|
|
| 35 | 2 |
1%
|
|
| 40 | 7 |
3.6%
|
|
| 42 | 1 |
0.5%
|
|
| 50 | 7 |
3.6%
|
|
| 55 | 1 |
0.5%
|
|
| 56 | 1 |
0.5%
|
|
| 60 | 2 |
1%
|
|
| 75 | 4 |
2%
|
|
| 85 | 1 |
0.5%
|
|
| 90 | 1 |
0.5%
|
|
| 100 | 2 |
1%
|
|
| Sysmiss | 418 |