Total per capita (15+ years) consumption is defined as total (recorded plus estimated
unrecorded) alcohol per capita (aged 15 years and older) consumption within a calendar
year in litres of pure alcohol. In this report total APC in 2010 consists of the sum of average
APC (15+) of recorded alcohol in 2008–2010 and an estimate of unrecorded per capita (15+)
alcohol consumption (see Box 13) in 2010. Notably, the recorded APC data were adjusted for
29 countries where the number of tourists was at least equal to the number of inhabitants (see
Appendix IV for methodology). There are different data sources and approaches for calculating
APC and assessing distribution by alcoholic beverage, as discussed in Appendix IV. This
report mostly uses official data sources such as tax or sales data, rather than data calculated
from surveys, which is often imprecise and underreported. Aggregate data are weighted by
population size in each country.