| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | none | 3355 |
81.4%
|
| 1 | 667 |
16.2%
|
|
| 2 | 75 |
1.8%
|
|
| 3 | 19 |
0.5%
|
|
| 4 | 3 |
0.1%
|
|
| 6 | 1 |
0%
|
|
| 10 | 1 |
0%
|
|
| 99 | more than 99 | 0 |
0%
|