| Value |
Category |
| 0 |
Less than one hour |
| 1 |
one to three hours |
| 2 |
Three to six hours |
| 3 |
six to 8 hours |
| 4 |
More than 8 hours |
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.
