| Value |
Category |
| 0 |
17 or less |
| 1 |
18 to 21 |
| 2 |
22 to 25 |
| 3 |
26 to 29 |
| 4 |
30 to 34 |
| 5 |
35 to 39 |
| 6 |
40 or more |
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.