Year % of GDP 1962 20.1007397591511 1963 19.477767649660368 1964 21.928740806968054 1965 21.67701897975718 1966 21.442766730358148 1967 21.85810760760339 1968 22.86885193992518 1969 25.973438582333014 1970 26.542380614727822 1971 26.960109188332172 1972 26.35271431517841 1973 26.45501688276419 1974 30.20433049062699 1975 29.306172448761348 1976 31.395868918282275 1977 34.07549394452901 1978 32.623400360838325 1979 29.10998077973928 1980 27.062654576672116 1981 27.91524932365215 1982 26.55594045587909 1983 26.554225549683075 1984 27.63171214105185 1985 29.968243558472135 1986 30.42321173394798 1987 30.686282971364797 1988 30.905510743443816 1989 27.877007149561845 1990 28.76195284541246 1991 28.59368243528298 1992 28.330736932512767 1993 26.37548598447236 1994 26.234324900902116 1995 26.04141579433396 1996 16.074724160452366 1997 15.26204932795091 1998 14.725368613361567 1999 14.422512185669415 2000 13.982790556681076 2001 13.980568574220678 2002 17.83588002061563 2003 13.109121908230529 2004 14.016836357885884 2005 13.687735654070462 2006 14.86356248229608 2007 18.846526646774674 2008 18.43760646526725 2009 21.306460193674486 2010 23.398901166723775 2011 25.968099902503045 2012 25.403695602281708 2013 24.822631634329205 2014 24.819459055638635 2015 26.110095529187504 2016 27.374861062011117 2017 28.12212964478337 2018 29.913320108060937 2019 30.441828194848792 2020 35.95177707589514 2021 38.36660692677377 2022 38.561046954633944 2023 36.492442013911