Year % of GDP 1989 17.754220830567675 1990 18.047615129541708 1991 16.964770906481643 1992 16.531101544437394 1993 14.709410651680038 1994 14.864471651654062 1995 16.29491441521575 1996 16.53188992608794 1997 16.50846202455286 1998 16.50712245169278 1999 19.245554519648937 2000 20.514700452905664 2001 20.619369702044928 2002 23.25467957565075 2003 24.95790371915584 2004 26.048060007753538 2005 25.633856131882105 2006 25.61106330314289 2007 24.44434352230493 2008 24.171522859583025 2009 20.707017459322635 2010 21.650695231622244 2011 22.282573570544574 2012 22.093128020061283 2013 21.503715171047766 2014 20.697905138957122 2015 21.875277302692805 2016 22.257830127628488 2017 22.05024158715864 2018 24.105656247031927 2019 24.340620318169943 2020 25.0035968668141 2021 27.20168655044663 2022 28.07710812412616 2023 25.309390893807333