| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
1%
|
| 0 | 16 |
4%
|
|
| 10 | 4 |
1%
|
|
| 15 | 1 |
0.3%
|
|
| 20 | 5 |
1.3%
|
|
| 25 | 6 |
1.5%
|
|
| 30 | 6 |
1.5%
|
|
| 35 | 3 |
0.8%
|
|
| 40 | 7 |
1.8%
|
|
| 50 | 22 |
5.5%
|
|
| 60 | 6 |
1.5%
|
|
| 65 | 1 |
0.3%
|
|
| 70 | 12 |
3%
|
|
| 75 | 1 |
0.3%
|
|
| 80 | 14 |
3.5%
|
|
| 85 | 1 |
0.3%
|
|
| 90 | 9 |
2.3%
|
|
| 95 | 2 |
0.5%
|
|
| 97 | 1 |
0.3%
|
|
| 98 | 1 |
0.3%
|
|
| 99 | 1 |
0.3%
|
|
| 100 | 275 |
69.1%
|
|
| Sysmiss | 1018 |