Year % of total taxes 1972 32.05437404078057 1973 30.952833777101503 1974 33.75754069911579 1975 33.55085150405863 1976 32.47857039081788 1977 33.06377983565937 1978 36.74349881796681 1979 36.32942459776374 1980 36.73376261217863 1981 37.07435395092818 1982 36.44255550029395 1983 35.77329737596853 1984 35.74446641082288 1985 35.36360138514822 1986 35.537646279531884 1987 33.89531957725215 1988 35.41441706750436 1989 33.182383518831465 1990 34.76331795610142 1991 35.96191406249999 1992 36.86390532544384 1993 38.17462020939155 1994 36.775222151883966 1995 44.941713771183224 1996 46.47959068382048 1997 47.225363405647016 1998 47.465268110301096 1999 46.532900941158566 2000 46.509606563692294 2001 49.31340611728995 2002 47.04136294253908 2003 46.984040610951126 2004 46.73226094483553 2005 46.191236998182326 2006 46.84883459398034 2007 48.03232443927255 2008 48.9423257919568 2009 45.520618203408276 2010 45.784347052856056 2011 45.95085409526592 2012 46.26123458457712 2013 46.70377216652735 2014 47.54115404136726 2015 48.62214230770564 2016 45.987133030593625 2017 46.64143273254177 2018 47.65113418611099 2019 47.974099991230446 2020 46.72124937495896 2021 48.37006175682635 2022 49.693919614344935