Quiz: How Much Do You Know About Healthcare in the United States? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1. How much did the United States spend on healthcare in 2021? $2.8 trillion, or 13 percent of GDP $4.3 trillion, or 18 percent of GDP $9.4 trillion, or 41 percent of GDP $11.1 trillion, or 49 percent of GDP See Answer