| Value | Category | Cases | |
|---|---|---|---|
| -97 | Refused | 149 |
2%
|
| 1 | I did not use public transportation during the past 30 days | 2864 |
38.2%
|
| 2 | I used public transportation but no one smoked in my presence | 3938 |
52.5%
|
| 3 | 1 to 2 days | 236 |
3.1%
|
| 4 | 3 to 4 days | 143 |
1.9%
|
| 5 | 5 to 6 days | 57 |
0.8%
|
| 6 | 7 days | 36 |
0.5%
|
| 7 | More than tha 7 days | 79 |
1.1%
|