| Value | Category | 
|---|---|
| 0 | No children | 
| 1 | All children less than 6 | 
| 2 | Oldest child between 6 and 11 at least one child less 6 | 
| 3 | All children between 6 and 11 | 
| 4 | Oldest child between 12 and 17 at least one child less than | 
| 5 | All children between 12 and 17 | 
| 6 | Oldest child greater than 17 and at least one child less th | 
| 7 | All children greater than 17 |