| Value | Category | Cases | |
|---|---|---|---|
| 1 | I don't smoke at all | 1775 |
90.1%
|
| 2 | 7 years or less | 56 |
2.8%
|
| 3 | 8 or 9 years | 26 |
1.3%
|
| 4 | 10 or 11 years | 17 |
0.9%
|
| 5 | 12 or 13 years | 21 |
1.1%
|
| 6 | 14 or 15 years | 23 |
1.2%
|
| 7 | 16 years or more | 11 |
0.6%
|
| 8 | I don't smoke regularly | 40 |
2%
|
| Sysmiss | 59 |