Year % of GDP 1974 30.288862294944366 1975 32.26964478232143 1976 33.720769832163995 1977 31.07828370675354 1978 32.846943036599825 1979 35.46993363520853 1980 36.58371223699168 1981 38.352331258549775 1982 40.03850840762618 1983 39.74293477295766 1984 40.032724485995246 1985 41.90546343459468 1986 49.01306182447278 1987 48.17871091916204 1988 46.40460909932878 1989 63.568127161188706 1990 43.105743828516125 1991 44.40289072458066 1992 50.791442827686616 1993 54.327373579141586 1994 49.57651522641212 1995 50.44566228889884 1996 54.07244302484787 1997 58.10025971906199 1998 60.705576478412326 1999 67.65954217559414 2000 67.31074142473916 2001 74.88068790956366 2002 78.6476899427992 2003 82.47933259052455 2004 80.56552596441357 2005 81.34927146990414 2006 85.3215502300439 2007 85.86136824616487 2008 88.43575437477115 2009 107.3294190279844 2010 106.22322334964417 2011 107.7592117768165 2012 114.16057816770714 2013 120.51332116946973 2014 126.98424407816906 2015 140.85516106086496 2016 145.85950895810583 2017 143.31222994395858 2018 143.24356399842227 2019 146.03008708860833 2020 163.7108670685373 2021 158.95060135273445 2022 164.71987394871041 2023 169.45865079221363