The data shows the percentage of smokers in the United States who thought smoking was harmful from 2001 to 2017, by daily tobacco consumption. It was found that almost 51% of those who smoked more than one pack of tobacco daily believed smoking was very harmful.
Very harmful | 65 | 56 | 51 |
Somewhat harmful | 29 | 30 | 35 |
Not too harmful | 3 | 7 | 8 |
Not at all harmful | 2 | 5 | 2 |
Depends (vol.) | 1 | 1 | 2 |