Value |
Category |
0 |
not yet occurred |
1 |
exact |
2 |
+/-1 year |
3 |
within 5 years |
4 |
within 10 years |
5 |
wild guess |
9 |
not ascertained |
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.