| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3519 |
70.8%
|
|
| 1 | yes | 1451 |
29.2%
|
| 2 | no | 0 |
0%
|
| 77 | refuse | 0 |
0%
|
| 88 | don't know | 0 |
0%
|
| 99 | missing | 0 |
0%
|