| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 Yes, it is common | 1910 |
47.6%
|
| 2 | 2 No it is not common | 1389 |
34.6%
|
| 3 | 3 (DK) | 688 |
17.1%
|
| 4 | 4 (Refused) | 25 |
0.6%
|
| Sysmiss | 1095271 |