| Value | Category | Cases | |
|---|---|---|---|
| 1 | In general not at all | 4625 |
93.6%
|
| 2 | Under an hour | 173 |
3.5%
|
| 3 | 1-2 hours | 61 |
1.2%
|
| 4 | 3-5 hours | 27 |
0.5%
|
| 5 | Over 5 hours | 55 |
1.1%
|
| Sysmiss | 90 |