Year % of total taxes 1972 48.837209302325576 1973 55.10204081632652 1974 54.166666666666664 1975 48.51485148514851 1976 54.03225806451613 1977 50.54347826086957 1978 52.589641434262944 1979 50.287356321839084 1980 42.67161410018553 1981 44.57478005865102 1982 36.04452054794521 1983 28.34290401968827 1984 31.07865744299257 1985 30.753036437246962 1986 34.23773932630286 1987 30.064426526754367 1988 39.15646027467046 1989 39.16349235141182 1990 39.81989846316418 1991 40.33579706177571 1992 44.43498665685102 1993 48.91597766942265 1994 49.098012255663456 1995 38.850425758789406 1996 37.435270162383084 1997 40.60161565222763 1998 46.329675371850264 1999 46.864314995698166 2000 43.158228213559475 2008 50.80549287536197 2009 50.27832620421465 2010 50.582543334732264 2011 52.62303025479288 2012 51.94942029897229 2013 57.124278809084885 2014 52.71199879220227 2015 51.67775747631026 2016 52.23725899441126 2017 54.82612273523346 2018 54.38684393378899 2019 52.715628074763785 2020 52.820953542468004 2021 53.16560783717647 2022 57.63020035623144