| Value |
Category |
| 1 |
Less than 30 minutes |
| 2 |
30 minutes to 1 hour |
| 3 |
More than 1 hour |
| 4 |
Never wrapped |
| 8 |
Don't know |
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.