Based on a comparison of 169 countries in 2014, USA ranked the highest in health expenditure as a percentage of GDP with 17.1% followed by Maldives and Sweden. On the other end of the scale was East Timor with 1.48%, Laos with 1.87% and Turkmenistan with 2.07%.
Average health expenditure as a percentage of GDP reached 9.92% in 2014 in the World according to World Bank / WHO. This is 0.952 % more than in the previous year and 1.25 % more than 10 years ago.
Historically, average health expenditure as a percentage of GDP reached an all time high of 10.4% in 2009 and an all time low of 8.51% in 1995. The average annual growth amounted to 0.812 % since 1960.
Data for more countries are available at Total Health Expenditure (As % of GDP) indicator page.