| Value | Category | Cases | |
|---|---|---|---|
| 2 | More than one year | 314 |
22.1%
|
| 3 | Less than one year | 1051 |
73.8%
|
| 4 | I never got the results | 5 |
0.4%
|
| 93 | Prefer not to answer | 1 |
0.1%
|
| 98 | Don't know | 53 |
3.7%
|
| Sysmiss | 106 |