Year % of total taxes 1990 21.632 1991 16.25744719263405 1992 18.24725498169988 2014 39.54512602582286 2015 40.921252527145796 2016 39.87057123362619 2017 39.00291066216378 2018 39.97890716067255 2019 42.44352455296808 2020 43.56172437992473