| Value | Category | Cases | |
|---|---|---|---|
| 1 | half hour or less | 4659 |
43.6%
|
| 2 | over half hour to 1 hour | 2104 |
19.7%
|
| 3 | over 1 hour to 2 hours | 1875 |
17.5%
|
| 4 | over 2 hours | 1954 |
18.3%
|
| 9 | no response | 105 |
1%
|
| Sysmiss | 1 |