1980 is the lowest in US health care spending, 2000 is the highest connie dello buono 8 years ago Health care expenditures as percentage of GDP Source: CMS. Office of the Actuary, National Health Statistics Group. Rapid growth in the health spending share of GDP stabilized beginning in 1993. Note the sharp upward curve between 1980 and 1992. Single-payer health care Australia spends 9% of GDP vs 17% in USADateMay 5, 2017In relation toMenuSingle-payer health care Australia spends 9% of GDP vs 17% in USADateMay 5, 2017In relation toMenuTotal health expenditure (% GDP), both private and publicDateJuly 13, 2016In relation toMenu