This slideshow explores the variation in health spending across the population through an analysis of the 2012 Medical Expenditure Panel Survey data. The analysis shows that the 1% of the population with the highest spending accounted for almost one quarter of health spending (23%) and that the top 5% of the population is responsible for almost half of all spending. It also examines spending variation across different demographic and health factors, including age, gender, race, insurance status and presence of certain health conditions.