| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 2 | 1 |
0.7%
|
|
| 5 | 3 |
2%
|
|
| 8 | 1 |
0.7%
|
|
| 10 | 8 |
5.3%
|
|
| 15 | 6 |
4%
|
|
| 18 | 1 |
0.7%
|
|
| 19 | 1 |
0.7%
|
|
| 20 | 22 |
14.6%
|
|
| 25 | 6 |
4%
|
|
| 30 | 7 |
4.6%
|
|
| 35 | 7 |
4.6%
|
|
| 40 | 9 |
6%
|
|
| 45 | 1 |
0.7%
|
|
| 50 | 61 |
40.4%
|
|
| 55 | 1 |
0.7%
|
|
| 60 | 4 |
2.6%
|
|
| 65 | 1 |
0.7%
|
|
| 70 | 1 |
0.7%
|
|
| 75 | 1 |
0.7%
|
|
| 90 | 2 |
1.3%
|
|
| 92 | 1 |
0.7%
|
|
| 100 | 6 |
4%
|
|
| Sysmiss | 450 |