| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 53 |
1.4%
|
| -8 | Refused | 1 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Nearly an hour more | 107 |
2.7%
|
| 2 | 1-2 hours more | 409 |
10.5%
|
| 3 | 3-4 hours more | 430 |
11%
|
| 4 | Over 4 hours more | 2901 |
74.4%
|
| Sysmiss | 3172 |