Year % of GDP 1960 17.749883979410253 1961 17.165196539476266 1962 18.12357417580262 1963 17.499430894693273 1964 17.876914338528202 1965 17.941921080523898 1966 18.156344395356836 1967 19.549230973979498 1968 20.510840427558993 1969 22.149606226172693 1970 23.378537772515756 1971 24.083385170569404 1972 24.622123008879843 1973 22.819054371181007 1974 22.477695281915246 1975 25.59677702449841 1976 27.623999891649838 1977 21.570442798945276 1978 23.21190231261685 1979 23.144311757095153 1980 22.99988548595957 1981 23.396644332200054 1982 23.949844186244135 1983 24.100167852465642 1984 22.641772576790437 1985 19.71651348025358 1986 19.651167970462946 1987 20.042371498092784 1988 19.669675149972615 1989 71.95749440865694 1990 27.681112930487974 1991 27.05393931964928 1992 39.509760579401444 1993 50.73223922271005 1994 38.236275597958155 1995 31.63917391057549 1996 29.76271067632601 1997 30.963877415966323 1998 26.363168778043764 1999 25.001840601540103 2000 24.07517010927653 2001 21.83384167812606 2002 22.117835756472488 2003 21.437180448925805 2004 21.821963610547066 2005 23.73821543908374 2006 26.663699793893915 2007 30.43498757425943 2008 32.42858497126642 2009 34.129495105816154 2010 36.611636081016336 2011 40.344166020229075 2012 42.363560397663335 2013 43.98103433853953 2014 45.40050903881969 2015 45.12105062212646 2016 44.58633105944456 2017 44.43424061213153 2018 45.171437072056335 2019 46.869798875621186 2020 50.018918659619175 2021 47.61213352518744 2022 47.02215974131768 2023 46.99823683682933