Year % of total taxes 1972 50.88028169014085 1973 52.62593783494105 1974 70.17543859649122 1975 72.00191113234592 1976 71.34080231297433 1977 72.69219352923716 1978 71.74447174447175 1979 77.55541871921181 1980 82.01656900383915 1981 84.11908577211774 1982 82.38294314381271 1983 82.26643598615917 1984 82.4584455686223 1985 75.76713022915376 1986 57.41345961448676 1987 62.612205874541885 1988 62.873804525309076 1989 62.74833195891746 1990 65.36402397973904 1991 62.96741521305438 1992 61.310474854999676 1993 58.67903007772897 1994 53.96338462547984 1995 54.509901936280635 1996 59.844347711383726 1997 64.62051406039657 1998 67.75411535598882 1999 65.85522854544158 2001 49.55643388582802 2002 47.28021627391602 2003 46.116117753133764 2004 42.0084919090193 2008 49.62130010429618 2009 51.22950951893947 2010 49.36299524268395 2011 49.334572260989574 2012 47.43105175019735 2013 47.0098671691528 2014 47.68949991924281 2015 48.59336870378676 2016 51.97105345211928 2017 48.1851889998318 2018 49.40473344128466 2019 50.017381963792815 2020 46.28738944427284 2021 45.12541415649245 2022 43.912914478342486