| Value | Category | Cases | |
|---|---|---|---|
| 0 | none | 189 |
71.3%
|
| 1 | 41 |
15.5%
|
|
| 2 | 19 |
7.2%
|
|
| 3 | 12 |
4.5%
|
|
| 4 | 3 |
1.1%
|
|
| 6 | 1 |
0.4%
|
|
| 77 | refused | 0 |
0%
|
| 88 | don't know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 4705 |