| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Less than half hour | 4685 | 9669743 |
67.5%
|
| 2 | Half an hour | 1031 | 2132243 |
14.9%
|
| 3 | More than one hour | 106 | 229178 |
1.6%
|
| 8 | 4 | 8716 |
0.1%
|
|
| 99 | Not stated | 1112 | 2288116 |
16%
|
| Sysmiss | 8091 | 15590074 |