Year % of GDP 1970 45.68442029613761 1971 40.22626872557524 1972 36.204880132355946 1973 41.062918273397486 1974 46.698270931723194 1975 29.948932396406867 1976 32.66746246212495 1977 75.1913592405165 1978 70.85221532660218 1979 71.47730006800425 1980 42.85898066156209 1981 29.94001864521958 1982 33.62098408559873 1983 19.97053783819162 1984 26.84968645842681 1985 19.3391348364331 1986 22.42752978046291 1987 15.523478565212734 1988 18.18160715170898 1989 24.35426507344817 1990 20.955936796234383 1991 34.42368247557664 1992 35.84162112155787 1993 29.425277701717643 1994 28.932890746626033 1995 32.78839130461351 1996 19.23245267536413 1997 22.8458848426975 1998 30.43491331663846 1999 51.74496175981881 2000 43.307998912363864 2001 40.815717450588046 2002 42.2678714274198 2003 47.01928624544042 2004 40.14582222289205 2005 41.77334063563328 2006 55.33177545774024 2007 57.66126490633593 2008 66.48187718534395 2009 55.315229148413515 2010 64.72962220083588 2011 64.03038096047747 2012 62.344316812266534 2013 61.78809174692033 2014 63.79658384936471 2015 58.846234635835216 2016 52.349344095192066 2017 50.620670722306485 2018 42.739795183927846 2019 38.985310251098944 2020 32.25604614420927 2021 35.659635024693614 2022 40.17048675518334 2023 34.14888671846634