| Value | Category | Cases | |
|---|---|---|---|
| 1 | Smoking | 12505 |
2.5%
|
| 2 | Not smoking | 51744 |
10.5%
|
| 3 | Refused to answer | 1570 |
0.3%
|
| 8 | Unknown | 105 |
0%
|
| 9 | Unspecified | 428953 |
86.7%
|