| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 3 |
0.4%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | none | 461 |
61%
|
| 1 | 181 |
23.9%
|
|
| 2 | 56 |
7.4%
|
|
| 3 | 25 |
3.3%
|
|
| 4 | 14 |
1.9%
|
|
| 5 | 8 |
1.1%
|
|
| 6 | 2 |
0.3%
|
|
| 7 | 2 |
0.3%
|
|
| 10 | 2 |
0.3%
|
|
| 12 | 2 |
0.3%
|