| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 3 |
0.4%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | none | 342 |
45.2%
|
| 1 | 323 |
42.7%
|
|
| 2 | 54 |
7.1%
|
|
| 3 | 19 |
2.5%
|
|
| 4 | 8 |
1.1%
|
|
| 5 | 3 |
0.4%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 10 | 1 |
0.1%
|
|
| 11 | 1 |
0.1%
|