The economy of El Salvador has experienced relatively low rates of GDP growth relative to other developing countries. Rates have not risen above the low single digits in nearly two decades – part of broader environment of macroeconomic instability which the integration of the US dollar has done little to improve. One problem that the Salvadoran economy faces is the inequality in the distribution of income. In 2011, El Salvador had a Gini Coefficient of .485, which although similar to that of the United States, leaves 37.8% of the population below the poverty line, due to lower aggregate income. The richest 10% of the population receives approximately 15 times the income of the poorest 40%.