| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mentioned | 71570 |
83.6%
|
| 2 | Not mentioned | 14016 |
16.4%
|
| -5 | HT: Dropped out survey;SG: Missing;DE: Inapplicable;RU: Inap | 11 | |
| -4 | Not asked | 3966 | |
| -3 | Not applicable | 0 | |
| -2 | No answer | 0 | |
| -1 | Don't know | 2 |