Year % of GDP 1965 44.43330447067402 1966 44.10878733109562 1967 44.15078877279246 1968 42.28727199658612 1969 39.069944730322085 1970 39.10249620449811 1971 40.21515529626007 1972 43.12664197765328 1973 50.54356869488047 1974 61.52904170768603 1975 60.7710729268267 1976 63.480334689971365 1977 64.62381308984739 1978 59.97519149861251 1979 65.24927721268023 1980 54.08566559462516 1981 51.87361504284795 1982 45.77562336852633 1983 46.37303806541952 1984 46.26287461116928 1985 43.15370882708588 1986 44.807818471172084 1987 40.04501413298451 1988 38.5691236980534 1989 37.944151560880364 1990 38.29753683253877 1991 40.058317599400986 1992 45.60154675767756 1993 47.55796368206239 1994 49.43104811531758 1995 55.82862063820128 1996 52.2827938347779 1997 60.21499796819628 1998 58.646736699989454 1999 58.533185835022195 2000 66.93295199426638 2001 64.24570253160145 2002 64.5915751913488 2003 67.06487689472435 2004 70.1940454421853 2005 68.77126139610832 2006 71.05673851507729 2007 75.45373050979471 2008 80.38632581841553 2009 63.57937508024829 2010 70.00789248869249 2011 75.29661631116093 2012 72.93037783799328 2013 73.95311528009691 2014 70.0025272788996 2015 67.41973800080552 2016 63.02231823418458 2017 65.3824243300123 2018 66.75031753382383 2019 65.12744623181904 2020 58.95785875393591 2021 72.34754919750412 2022 75.72309412133951 2023 65.10538393832009