| Value | Category | Cases | |
|---|---|---|---|
| 2 | 30 minutes or more but less than 60 minutes | 104 |
19.7%
|
| 3 | don't know | 18 |
3.4%
|
| 4 | less than quarter of an hour | 138 |
26.1%
|
| 5 | more than 15 minutes, but less than 30 minutes | 121 |
22.9%
|
| 6 | more than 60 minutes | 147 |
27.8%
|
| Sysmiss | 2088 |