Income inequality has grown over time

Percent change in 90/10 ratio
Percent change Ratio

NOTES: Chart shows percent change since 1980 in ratio of 90th percentile to 10th percentile pre-tax family cash income. Income includes wages and earnings, income earned from businesses, farms and/or investments, retirement account withdrawals, social security, cash welfare, unemployment insurance, and other sources. It does not include stimulus payments or resources from in-kind safety net benefits. Series is adjusted for inflation, family size, and survey changes; entropy weights are used in 2018–2020.