| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 173 |
73%
|
| 2 | No | 27 |
11.4%
|
| 3 | Did Not Smoke 3 Years Ago | 37 |
15.6%
|
| 9 | Refused | 0 |
0%
|
| Sysmiss | 7603 |