Year % of GDP 1995 19.96615905245347 1996 20.16194331983806 1997 23.595915390226114 1998 21.972492452197248 1999 21.85473411154345 2000 21.419540298436253 2001 24.841972298829514 2002 24.89022410798189 2003 24.44465093906465 2004 22.886678805306147 2005 22.83597483306036 2006 22.323000847562867 2007 21.41445255955692 2008 21.248320401555194 2009 24.833034001343165 2010 26.4651444384815 2011 25.10845513799069 2012 26.177945378803784 2013 26.19330387103764 2014 24.823740632045546 2015 23.255695560980797 2016 23.487527025916233 2017 23.021623543388 2018 23.071020416515328 2019 22.49855226964636 2020 27.466133661571334 2021 21.84867589843669 2022 19.90316844700936