| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 21 |
9.6%
|
| 0 | 3 |
1.4%
|
|
| 1 | 4 |
1.8%
|
|
| 2 | 4 |
1.8%
|
|
| 5 | 12 |
5.5%
|
|
| 8 | 1 |
0.5%
|
|
| 10 | 32 |
14.7%
|
|
| 15 | 13 |
6%
|
|
| 20 | 40 |
18.3%
|
|
| 25 | 6 |
2.8%
|
|
| 30 | 24 |
11%
|
|
| 33 | 1 |
0.5%
|
|
| 35 | 1 |
0.5%
|
|
| 40 | 8 |
3.7%
|
|
| 45 | 1 |
0.5%
|
|
| 50 | 16 |
7.3%
|
|
| 60 | 7 |
3.2%
|
|
| 70 | 7 |
3.2%
|
|
| 78 | 1 |
0.5%
|
|
| 80 | 7 |
3.2%
|
|
| 90 | 1 |
0.5%
|
|
| 95 | 2 |
0.9%
|
|
| 100 | 6 |
2.8%
|
|
| Sysmiss | 868 |