| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 2030 |
73.5%
|
| 1 | 1-10 | 331 |
12%
|
| 2 | 11-20 | 27 |
1%
|
| 3 | 21-30 | 6 |
0.2%
|
| 4 | More than 30 | 12 |
0.4%
|
| 5 | Don't know | 355 |
12.9%
|
| Sysmiss | 1490 |