Year % of GDP 1960 -10.034066131627108 1961 -9.974782375729845 1962 -9.611670724464389 1963 -9.647442249675189 1964 -7.522018646753568 1965 -5.640243902439036 1966 0.13550135501355012 1967 -0.713444868547783 1968 -9.157894736842104 1969 8.46084608460846 1970 9.064539521392314 1971 22.026431718061673 1972 27.773406766325724 1973 27.76630274417232 1974 24.020197162779514 1975 21.701884637350076 1976 17.836166924265843 1977 15.055884286653518 1978 19.89978525411596 1979 26.09248727925771 1980 26.669092232126612 1981 21.580411797440178 1982 22.946270513372564 1983 28.9069487109694 1984 32.29260420222836 1985 38.05370235036186 1986 40.68745462188085 1987 42.18821033489923 1988 50.17680631953348 1989 49.196514070056566 1990 42.63047069416577 1991 39.71081767713201 1992 37.02717223562226 1993 36.661142693599054 1994 33.13976877197278 1995 30.514251727135473 1996 38.44454511042576 1997 36.36552123004398 1998 33.017684252124084 1999 39.881867720236265 2000 41.77522527251117 2001 42.05869786907587 2002 40.245525337052534 2003 39.41462268013426 2004 39.68138004029175 2005 42.49251459132545 2006 38.96150641488396 2007 37.45509056523504 2008 30.975941763486126 2009 19.88130260787382 2010 26.45067408657395 2011 31.147435296536212 2012 22.168258799557165 2013 22.36822662775031 2014 28.43621421954895 2015 22.362843834047233 2016 30.825717353170813 2017 29.07989929249361 2018 27.43429852745645 2019 24.105124086873623 2020 15.313498531136958 2021 25.167499783054392 2022 31.534260096154842 2023 28.111426198601013