| Value | Category | Cases | |
|---|---|---|---|
| 1 | half hour or less | 4641 |
43.4%
|
| 2 | over half hour to 1 hour | 2850 |
26.6%
|
| 3 | over 1 hour to 2 hours | 2082 |
19.5%
|
| 4 | over 2 hours | 1095 |
10.2%
|
| 9 | no response | 29 |
0.3%
|
| Sysmiss | 1 |