| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 Less than one hour | 9311 |
65.5%
|
| 2 | 2 1 to 2 hours | 4251 |
29.9%
|
| 3 | 3 More than two hours | 552 |
3.9%
|
| 4 | 4 (DK) | 88 |
0.6%
|
| 5 | 5 (Refused) | 9 |
0.1%
|
| Sysmiss | 1085072 |