| Value |
Category |
| 1 |
Less than 1/2 hour |
| 2 |
Between 1/2 & 1 hour |
| 3 |
Between 1 & 2 hours |
| 4 |
More than 2 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.