Bloomberg

Methodology: Efficiency score based on three weighted metrics: life expectancy (60%), relative and absolute health expenditure (30% and 10% respectively). Ranking included countries and regions with popullation of at leastfive million, GDP per capita of at least $5000 and life expectancy of at least 70 years of age. Total health expenditure generally includes preventive and curative health services, family plannig, nutrion activities and emergency aid. Relative cost is measured by total health expenditures as a percentage of GDP and absolute cost is the simple per capita dollar figure of total health expenditure. Current ranking used data as most recently available: 2014 for all metrics except health care cost related data for Hong Kong and Taiwan for which data were as of 2013. For comparison, an inferred measure of 2009 was complied for the same countries and based on the same methodology. Sources: World Bank, World Health Organization, International Monetary Fund, Hong Kong Department of Health, Taiwan Ministry of Health and Welfare

To identify the healthiest countries in the world, Bloomberg Rankings created health scores and health-risk scores for countries with populations of at least 1 million. The risk score was subtracted from the health score to determine the country''s rank. Five-year averages, when available, were used to mitigate some of the short-term year-over-year swings.