Value |
Category |
1 |
1 Less than 10 minutes |
2 |
2 10 to 20 minutes |
3 |
3 20 to 30 minutes |
4 |
4 More than 30 minutes |
98 |
98 Don't know |
Sysmiss |
|
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.