| Value |
Category |
| 1 |
I Never smoked |
| 2 |
Seven years or less |
| 3 |
Between 8 to 9 years |
| 4 |
Between 10 to 11 years |
| 5 |
Between 12 to 13 years |
| 6 |
Between 14 to 15 years |
| 7 |
16 years or older |
| 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.
