| Value |
Category |
| 1 |
less than 2 hours |
| 2 |
2 to less than 3.5 hours |
| 3 |
3.5 to less than 5 hours |
| 4 |
5 hours or more |
| 6 |
not applicable |
| 8 |
not admin. |
| 9 |
omitted |
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.