Year % of total taxes 1990 23.806138168029385 1991 21.646516983304547 1992 21.137440758293838 1993 19.661831285225908 1994 21.473251028806583 2000 31.48936170212766 2001 29.65056526207605 2002 32.204396256913824 2003 28.254512231366753 2004 27.633989804021326 2005 29.418605118537155 2006 27.234275891091496 2007 25.72679405150883 2008 32.47483174960342 2009 37.887567703878055 2010 27.42418121980437 2011 21.28343544920292 2012 20.41458588035084 2013 19.486979524157647 2014 19.890922108277707 2015 25.035962717007905 2016 25.357758447909568 2017 26.997766284989837 2020 30.52924791086351