| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.6%
|
| 0 | 121 |
71.6%
|
|
| 2 | 1 |
0.6%
|
|
| 10 | 1 |
0.6%
|
|
| 20 | 4 |
2.4%
|
|
| 30 | 4 |
2.4%
|
|
| 45 | 2 |
1.2%
|
|
| 50 | 7 |
4.1%
|
|
| 60 | 1 |
0.6%
|
|
| 65 | 2 |
1.2%
|
|
| 67 | 1 |
0.6%
|
|
| 70 | 3 |
1.8%
|
|
| 80 | 8 |
4.7%
|
|
| 90 | 3 |
1.8%
|
|
| 100 | 10 |
5.9%
|
|
| Sysmiss | 90 |