Year % of GDP 1960 27.407770042553462 1961 26.768055957788967 1962 26.16897927846517 1963 26.37635317781315 1964 26.803041657918605 1965 27.251853657700387 1966 27.490304343740398 1967 27.019069246259125 1968 28.448731943981272 1969 30.247658049945535 1970 31.554744056742337 1971 31.35748536203481 1972 31.48978853791601 1973 33.747098717810516 1974 40.281189792725314 1975 36.551675660660415 1976 39.24824177327165 1977 39.187037107709116 1978 37.91268141101858 1979 40.16656977574041 1980 41.7755139614861 1981 43.68884585296743 1982 43.34078073468336 1983 43.0033225356991 1984 45.53531655261911 1985 46.29386432756927 1986 40.283462057369206 1987 39.53534019287343 1988 39.896587056822675 1989 41.942276519341796 1990 40.41306142994072 1991 39.22258780259584 1992 37.90845607682679 1993 37.65351465671378 1994 40.683019688850585 1995 43.18889688422006 1996 43.71748694145782 1997 47.05165453974743 1998 48.529616533869614 1999 51.97444850806522 2000 59.72117478204111 2001 58.77727981489325 2002 56.927602691072046 2003 56.277045748348435 2004 58.9079318807057 2005 61.60100304054259 2006 65.45294953121322 2007 66.92693265153692 2008 67.97845430656224 2009 57.270576182073235 2010 65.29188136125514 2011 70.68506087178932 2012 71.73279563268213 2013 70.58036673149317 2014 70.29305466428775 2015 70.37329424098607 2016 69.05987478462286 2017 71.97568904093073 2018 73.49122911455582 2019 72.4465754539882 2020 69.11642084097846 2021 75.98175231114867 2022 87.51271057789435 2023 77.57078138157847