Year % of total taxes 1990 41.90671998333477 1991 35.42875699231108 1992 41.51854121254716 1993 33.9171616639085 1994 31.28488018495001 1995 31.425862283424078 1996 34.68121362813079 1997 33.60502257957925 1998 37.11552888222055 1999 34.658637451933544 2001 37.92781371243563 2002 43.405852944878816 2003 46.36604907549689 2004 44.300189223354174 2005 43.676846143604074 2006 45.74447829398324 2007 44.37598466842439 2008 43.957140776268204 2009 48.862743977351144 2010 51.4896735851636 2011 53.69204127566567 2012 52.14288966106021 2013 43.73370227855825 2014 41.11910187876809 2015 46.34508261637886 2016 50.502991444609115 2017 43.07338832554846 2018 44.269294632171146 2019 46.32800018322276 2020 52.90329161932874 2021 56.73421422517422