| Value |
Category |
| -99 |
Refused |
| -9 |
Missing |
| 1 |
|
| 2 |
|
| 3 |
|
| 9 |
September |
| 10 |
October |
| 11 |
November |
| 12 |
December |
| 98 |
Notappl |
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.