| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.5%
|
| 0 | 137 |
69.5%
|
|
| 1 | 1 |
0.5%
|
|
| 2 | 1 |
0.5%
|
|
| 4 | 1 |
0.5%
|
|
| 5 | 4 |
2%
|
|
| 10 | 8 |
4.1%
|
|
| 18 | 1 |
0.5%
|
|
| 20 | 15 |
7.6%
|
|
| 25 | 4 |
2%
|
|
| 30 | 7 |
3.6%
|
|
| 40 | 4 |
2%
|
|
| 45 | 1 |
0.5%
|
|
| 50 | 5 |
2.5%
|
|
| 60 | 1 |
0.5%
|
|
| 75 | 1 |
0.5%
|
|
| 100 | 5 |
2.5%
|
|
| Sysmiss | 418 |