YearTax RateRatio2022$18.4892.9%2021$18.3892.9%2020$20.1192.2%2019$19.3998.1%2018$21.8085.1%2017$21.6189.6%2016$21.5095.8%2015$21.0299.9%2014$21.09102.3%2013$21.10111.3%2012$20.50114.8%