2000 National Health Interview Survey results: patterns in the age of initiation of regular smoking by birth cohort
| Birth cohort | % regular smoker by age 15 | % regular smoker by age 18 | % regular smoker after age 18 | % regular smoker at age 19–21 | % ever smokers never regular smokers | % of ever smokers not daily smokers |
|---|---|---|---|---|---|---|
| *Results represent the percentage of ever smokers who reported becoming a “regular smoker” at the ages indicated in column heading. | ||||||
| 1960 | 28.1 | 70.0 | 26.7 | 12.4 | 5.3 | 12.1 |
| 1961 | 30.5 | 68.1 | 26.6 | 13.3 | 5.7 | 10.1 |
| 1962 | 31.0 | 70.4 | 27.9 | 13.4 | 4.8 | 11.4 |
| 1963 | 32.5 | 71.3 | 24.3 | 14.6 | 5.3 | 9.9 |
| 1964 | 33.7 | 70.7 | 24.7 | 13.9 | 4.5 | 11.0 |
| 1965 | 35.1 | 66.1 | 28.7 | 12.1 | 4.4 | 14.1 |
| 1966 | 32.9 | 69.0 | 27.6 | 13.5 | 4.1 | 12.9 |
| 1967 | 34.7 | 69.5 | 25.4 | 16.5 | 4.6 | 14.5 |
| 1968 | 30.2 | 71.5 | 23.9 | 12.8 | 3.9 | 13.1 |
| 1969 | 37.2 | 65.7 | 29.0 | 19.6 | 4.2 | 14.3 |
| 1970 | 28.9 | 66.8 | 28.6 | 16.1 | 4.5 | 14.5 |
| 1971 | 32.5 | 70.9 | 24.8 | 14.3 | 4.1 | 13.7 |
| 1972 | 27.7 | 73.4 | 22.5 | 16.1 | 3.1 | 22.5 |
| 1973 | 33.4 | 77.4 | 21.6 | 15.3 | 3.4 | 19.6 |
| 1974 | 32.5 | 79.0 | 18.4 | 13.5 | 3.3 | 16.9 |
| 1975 | 28.9 | 73.6 | 21.5 | 17.8 | 4.0 | 21.4 |
| 1976 | 30.0 | 74.5 | 21.0 | 18.8 | 3.9 | 16.7 |
| 1977 | 26.3 | 70.8 | 24.3 | 21.7 | 4.4 | 20.8 |