| Value |
Category |
| 0 |
None |
| 1 |
1-10 Min |
| 2 |
11-30 Min |
| 3 |
30 Min to 1 Hour |
| 4 |
1-2 Hours |
| 5 |
2-4 Hours |
| 6 |
Over 4 Hours |
| 99 |
Not Stated |
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.