| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 10 | 2 |
2%
|
|
| 15 | 1 |
1%
|
|
| 20 | 6 |
6.1%
|
|
| 25 | 1 |
1%
|
|
| 27 | 1 |
1%
|
|
| 30 | 6 |
6.1%
|
|
| 35 | 1 |
1%
|
|
| 40 | 9 |
9.1%
|
|
| 45 | 2 |
2%
|
|
| 50 | 21 |
21.2%
|
|
| 55 | 1 |
1%
|
|
| 60 | 11 |
11.1%
|
|
| 65 | 1 |
1%
|
|
| 70 | 9 |
9.1%
|
|
| 75 | 1 |
1%
|
|
| 80 | 11 |
11.1%
|
|
| 85 | 1 |
1%
|
|
| 90 | 6 |
6.1%
|
|
| 100 | 8 |
8.1%
|
|
| Sysmiss | 51 |