| Value | Category | Cases | |
|---|---|---|---|
| 1 | 15 minutes or less | 4325 |
51%
|
| 2 | More than 15 to 30 minutes | 1732 |
20.4%
|
| 3 | More than 30 minutes to an hour | 1216 |
14.3%
|
| 4 | More than an hour | 658 |
7.8%
|
| 5 | Don't know | 548 |
6.5%
|
| Sysmiss | 92 |