| Value | Category | Cases | |
|---|---|---|---|
| 1 | 15 minutes or less | 1253 |
14.8%
|
| 2 | More than 15 to 30 minutes | 1313 |
15.5%
|
| 3 | More than 30 minutes to an hour | 1494 |
17.6%
|
| 4 | More than an hour | 2519 |
29.7%
|
| 5 | Don't know | 1900 |
22.4%
|
| Sysmiss | 92 |