Value |
Category |
1 |
up to 30 min |
2 |
from 31 min. Up to 1 hour |
3 |
over 1 hour. Up to 2 hours |
4 |
over 2 hours |
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.