| Value | Category |
|---|---|
| 1 | has become far more acute compared to last year |
| 2 | has become slightly more acute compared to last year |
| 3 | the acuteness of the problem has not changed |
| 4 | has become slightly less acute compared to last year |
| 5 | has become far less acute compared to last year |
| 88 | do not know |
| 99 | refusal |
| Sysmiss |