| Value |
Category |
| 1 |
Yes |
| 2 |
No |
| 3 |
One of the twins |
| 4 |
Two of the multiple births |
| 5 |
One of the multiple births |
| 8 |
Dont 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.