| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
2.5%
|
|
| 4 | 1 |
0.8%
|
|
| 8 | 4 |
3.4%
|
|
| 9 | 4 |
3.4%
|
|
| 10 | 14 |
11.8%
|
|
| 11 | 8 |
6.7%
|
|
| 12 | 15 |
12.6%
|
|
| 13 | 4 |
3.4%
|
|
| 14 | 4 |
3.4%
|
|
| 15 | 12 |
10.1%
|
|
| 16 | 5 |
4.2%
|
|
| 17 | 1 |
0.8%
|
|
| 18 | 1 |
0.8%
|
|
| 19 | 1 |
0.8%
|
|
| 20 | 3 |
2.5%
|
|
| 24 | 1 |
0.8%
|
|
| 29 | 1 |
0.8%
|
|
| 30 | 3 |
2.5%
|
|
| 96 | 2 |
1.7%
|
|
| 98 | don't know | 24 |
20.2%
|
| 99 | refused | 8 |
6.7%
|
| Sysmiss | 5141 |