The report shows that out of all OECD countries, the U.S. spent the most on its health system in 2018 - equivalent to 16.9 percent of GDP. That's over $10,000 per person when adjusted for purchasing power. Northern Italy is generally regarded as having one of the world's best health systems but it couldn't cope with scale of the country's coronavirus outbreak, particularly due to a chronic lack of ventilators and overburdened ICU capacity. Italy's health expenditure is equivalent to 8.8 percent of its GDP and Spain's is similar, though ever so slightly higher, equivalent to 8.9 percent of GDP. Read more.