Value |
Category |
1 |
<2hrs. |
2 |
2.0-3.5 hrs. |
3 |
3.5-5.0hrs. |
4 |
>5hrs. |
6 |
not applicable |
8 |
not admin. |
9 |
missing |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.