Year % of GDP 1960 14.698972099853158 1961 15.271210013908206 1962 14.9439601494396 1963 14.592274678111588 1964 15.934393638170974 1965 17.68802228412256 1966 18.47123719464145 1967 19.254261363636363 1968 19.82857142857143 1969 20.86187214611872 1970 22.673282442684478 1971 23.540618556649484 1972 24.885506744984433 1973 25.382417582383244 1974 23.417507059272893 1975 23.056934533024357 1976 22.284742468400754 1977 23.23714853733551 1978 21.184777798849485 1979 19.5088729706634 1980 18.033858448363954 1981 22.48835590431591 1982 25.595537637483083 1983 25.050698269786707 1984 25.132858422246567 1985 24.44558419170549 1986 27.89642771142126 1987 29.238014557980996 1988 27.906395459065426 1989 26.8154382359268 1990 23.740231140166316 1991 27.089925694740135 1992 27.81156938926327 1993 25.196987224824507 1994 31.600519704497103 1995 32.156092966503216 1996 36.58958894038037 1997 37.07526253262116 1998 28.13242964739546 1999 38.074804470307775 2000 33.53147907967272 2001 44.272256612339554 2002 38.66139171763454 2003 33.92996257092922 2004 33.201796480393085 2005 38.678567536528355 2006 40.39751760372272 2007 41.726423759079445 2008 46.10902787319474 2009 51.75952886468512 2010 52.88360469312767 2011 50.63523490300261 2012 49.67066437866384 2013 52.19255346429619 2014 51.49283669152812 2015 52.441585496514676 2016 55.22271913727752 2017 53.85432905654473 2018 53.11712522518069 2019 58.772775090645254 2020 67.47809183520891 2021 71.60546560342837 2022 55.495775908087296 2023 53.87830947646138