| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 27 |
3.5%
|
|
| 5 | 3 |
0.4%
|
|
| 10 | 12 |
1.5%
|
|
| 15 | 1 |
0.1%
|
|
| 20 | 11 |
1.4%
|
|
| 30 | 14 |
1.8%
|
|
| 40 | 16 |
2%
|
|
| 50 | 41 |
5.2%
|
|
| 60 | 22 |
2.8%
|
|
| 70 | 10 |
1.3%
|
|
| 80 | 11 |
1.4%
|
|
| 90 | 4 |
0.5%
|
|
| 95 | 1 |
0.1%
|
|
| 100 | 608 |
77.8%
|
|
| Sysmiss | 315 |