El Salvador provides an important example of a country that underwent tax reform efforts, which boosted revenues to finance key social development programs, including health. Two decades after the end of the civil war and its return to democracy in 1992, El Salvador has achieved important progress in health outcomes, improving life expectancy at birth from 66 years in 1990 to 72 years in 2013, while reducing the under-five mortality rate per 1,000 live births from 59 to 16 in the same period.