Year % of GDP 1983 25.35648108554976 1984 27.277790893262903 1985 29.398001136477586 1986 29.715458156503065 1987 28.946237568701655 1988 27.262820114439563 1989 26.826699498349036 1990 27.96538825930428 1991 28.31051510710523 1992 24.78484162041572 1993 21.10099751369992 1994 18.87835264056509 1995 19.694650697979494 1996 19.26387094267645 1997 14.8826021296259 1998 14.171313115425027 1999 13.425432654728919 2000 12.518663096003227 2001 12.674394351029012 2002 13.080129913982086 2003 14.870909440373566 2004 14.902608425443276 2005 14.852467106356649 2006 14.543390753372831 2007 13.735144076113679 2008 14.946882851223478 2009 14.818600709339302 2010 13.528323617412841 2011 12.733404312301749 2012 12.173156821970464 2013 11.26622778825976 2014 12.14330217423404 2015 13.242661331180688 2016 10.986774876001439 2017 10.27325272776135 2018 11.079728427081916 2019 10.578699218584598 2020 9.67628636306538 2021 10.230642024578431 2022 10.083767166895987 2023 9.457421959895003