| Value | Category | Cases | |
|---|---|---|---|
| 1 | 14 minutes or less | 342 |
34.3%
|
| 2 | 15 - 29 minutes | 394 |
39.5%
|
| 3 | 30 - 44 minutes | 187 |
18.7%
|
| 4 | 45 - 59 minutes | 41 |
4.1%
|
| 5 | 60 minutes or more | 24 |
2.4%
|
| 6 | Do not know | 6 |
0.6%
|
| 9 | Unspecified | 4 |
0.4%
|