| Value | Category | Cases | |
|---|---|---|---|
| 1 | 15-30 minutes | 49 |
30.1%
|
| 2 | 31-45 minutes | 28 |
17.2%
|
| 3 | 46-60 minutes | 6 |
3.7%
|
| 4 | Don't know | 1 |
0.6%
|
| 5 | Less than 15 minutes | 63 |
38.7%
|
| 6 | more than one hour. | 16 |
9.8%
|