| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 20 | 4 |
1.5%
|
|
| 25 | 2 |
0.8%
|
|
| 30 | 11 |
4.2%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 6 |
2.3%
|
|
| 50 | 15 |
5.7%
|
|
| 60 | 6 |
2.3%
|
|
| 65 | 1 |
0.4%
|
|
| 70 | 7 |
2.7%
|
|
| 75 | 3 |
1.1%
|
|
| 80 | 22 |
8.4%
|
|
| 85 | 7 |
2.7%
|
|
| 90 | 24 |
9.2%
|
|
| 95 | 8 |
3.1%
|
|
| 100 | 144 |
55%
|
|
| Sysmiss | 257 |