Year % of GDP 1962 1.8137363304703353 1963 1.6879230310167455 1964 2.1085216849338204 1965 2.149920138163644 1966 2.1310214624610353 1967 2.7467027241712523 1968 3.1095071748632224 1969 3.4152219413859255 1970 2.907090489341203 1971 2.674099101169665 1972 2.909207471560908 1973 3.004655201176944 1974 3.1548043659438356 1975 4.360937412349399 1976 4.20317180326308 1977 4.453156549904702 1978 4.42088787063299 1979 3.936405875886866 1980 3.183977782584665 1981 3.061682164931153 1982 2.9042257523979016 1983 3.095569241241806 1984 2.9562143443898075 1985 2.7845228019982184 1986 2.9919956481044765 1987 2.9529414098837914 1988 3.289119907046713 1989 3.2327309499157653 1990 3.196320464121331 1991 2.831913852928163 1992 2.2538187809069274 1993 2.4751807765232763 1994 2.028704087964871 1995 1.5233063676920076 1996 1.210270626080779 1997 1.2133665247949834 1998 1.22037662634687 1999 1.898355773388101 2000 1.65430309388674 2001 1.6445019621770227 2002 1.6749588646141749 2003 1.4507916575483406 2004 1.4882720838784746 2005 1.3025816869710563 2006 1.2823266038194243 2007 1.281819724888981 2008 1.4481054276002048 2009 1.5147725805593022 2010 1.2430469256027012 2011 1.2145266876971108 2012 1.1814212536350874 2013 1.2761818307698816 2014 1.2515772178629379 2015 1.1429616433340033 2016 1.068571269416999 2017 1.0804957255348637 2018 1.0001793166758064 2019 0.9495280127670732 2020 1.031354268310737 2021 1.0748662634345258 2022 0.9878861589446741