| Value | Category | Cases | |
|---|---|---|---|
| -2 | Refuse | 0 |
0%
|
| -1 | Don't know | 0 |
0%
|
| 0 | None | 316 |
0.8%
|
| 1 | 30 minutes or less | 21064 |
52.9%
|
| 2 | Up to 1 hour | 13158 |
33%
|
| 3 | Up to 2 hours | 3615 |
9.1%
|
| 4 | Up to 3 hours | 922 |
2.3%
|
| 5 | More than 3 hours | 774 |
1.9%
|
| Sysmiss | 2571 |