PMI uses PMI Financials or estimates, IQOS user panels and PMI Market Research. The number of total users PMI reports refers to IQOS users for whom PMI HeatSticks represent at least 5% of their daily tobacco consumption over the past 7 days, while the number of people PMI estimates have completely quit cigarette smoking refers to IQOS users who have completely quit cigarettes and for whom PMI HeatSticks represent at least 70% of their past 7-day heated tobacco consumption.