| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 23 |
9.4%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 19 |
7.8%
|
|
| 3 | 1 |
0.4%
|
|
| 10 | 3 |
1.2%
|
|
| 20 | 14 |
5.7%
|
|
| 25 | 7 |
2.9%
|
|
| 30 | 18 |
7.3%
|
|
| 40 | 27 |
11%
|
|
| 50 | 47 |
19.2%
|
|
| 55 | 1 |
0.4%
|
|
| 60 | 25 |
10.2%
|
|
| 65 | 3 |
1.2%
|
|
| 70 | 18 |
7.3%
|
|
| 75 | 7 |
2.9%
|
|
| 80 | 3 |
1.2%
|
|
| 85 | 1 |
0.4%
|
|
| 90 | 8 |
3.3%
|
|
| 95 | 2 |
0.8%
|
|
| 100 | 18 |
7.3%
|
|
| Sysmiss | 356 |