Cigarette consumption of the population aged 15 years or over from interview-based and legal sales data, and the corresponding under-reporting of smoking. Italy, 1990 and 2001–2008
| Year | |||||||||
| 1990 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Population ≥15 years (millions) | 47.173 | 48.839 | 48.884 | 49.173 | 49.698 | 50.207 | 50.468 | 50.809 | 51.252 |
| DOXA surveys: | |||||||||
| Sample size | 1033 | 3296 | 3238 | 3535 | 3050 | 3114 | 3039 | 3057 | 3035 |
| Smoking prevalence, % | 32.0 | 29.2 | 26.6 | 27.6 | 26.2 | 25.6 | 24.3 | 23.5 | 22.0 |
| Number of cigarettes per day per smoker | 16.3 | 14.7 | 15.2 | 14.6 | 15.4 | 14.6 | 13.9 | 14.7 | 14.5 |
| Cigarettes per day per person | 5.22 | 4.29 | 4.04 | 4.03 | 4.03 | 3.74 | 3.38 | 3.45 | 3.19 |
| Legal sales: | |||||||||
| Tons sold per year | 90.901 | 101.595 | 102.932 | 101.582 | 98.846 | 92.822 | 93.807 | 92.821 | 92.000 |
| Cigarettes per day per person | 5.28 | 5.70 | 5.76 | 5.66 | 5.45 | 5.06 | 5.09 | 5.00 | 4.91 |
| Under-reporting of smoking, % | 1.2 | 24.6 | 29.9 | 28.8 | 25.9 | 26.2 | 33.6 | 30.9 | 35.1 |
DOXA, Italian branch of the Gallup International Association.