Year % of GDP 1960 21.91482670307702 1961 21.053787031568884 1962 19.840342888763757 1963 23.180558866488223 1964 20.299965318858398 1965 20.401225870018774 1966 20.359419704450897 1967 19.74847110756202 1968 20.606261119781742 1969 21.051980473265424 1970 22.280768217431227 1971 22.75775899151915 1972 23.50452304198194 1973 24.804227711946293 1974 29.299128817158575 1975 27.627503317751355 1976 27.221162491169547 1977 28.07615320566547 1978 27.66800631847872 1979 29.09027031365402 1980 30.301429653182375 1981 29.318829672233225 1982 27.90392252878802 1983 29.430202412643027 1984 30.164084620047532 1985 29.6475445623617 1986 28.593456455898707 1987 29.371898241436245 1988 32.51767827392586 1989 32.36324350634064 1990 33.09458634443027 1991 32.43755623310107 1992 33.16461762386063 1993 31.221337711769202 1994 31.719466000791755 1995 34.55702131878865 1996 35.48025091812994 1997 35.63843040588755 1998 35.513300370050196 1999 36.73403605097023 2000 38.67198355761021 2001 38.76633207627912 2002 41.295859708152214 2003 43.24970356413548 2004 45.521364622930584 2005 45.520811145729425 2006 46.09954246762999 2007 46.14554307316928 2008 47.91776512326909 2009 41.10874756447326 2010 43.72027814869853 2011 46.17930232114133 2012 45.72691110038966 2013 44.97317273662775 2014 44.0624182578683 2015 44.37618587989061 2016 44.32084575059847 2017 44.66006452268691 2018 48.079160987714744 2019 47.381795572358975 2020 47.02290790630523 2021 53.91094665833562 2022 57.25908920457916 2023 48.58863028827146