| Value | Category | Cases | |
|---|---|---|---|
| 1 | half hour or less | 2630 |
24.6%
|
| 2 | over half hour to 1 hour | 3106 |
29%
|
| 3 | over 1 hour to 2 hours | 2854 |
26.7%
|
| 4 | over 2 hours | 2093 |
19.6%
|
| 9 | no response | 14 |
0.1%
|
| Sysmiss | 1 |