Year % of GDP 1966 0.7713742875237491 1967 2.519253208868145 1968 -0.412594752186589 1969 -0.6577045696068012 1970 3.772372648003671 1971 0.7790393013100437 1972 0.24400337837837838 1973 0.8414062499999999 1974 1.2146430750457597 1975 9.638991596638656 1976 6.453421524460744 1977 2.4969516826301335 1978 -3.0738560267857142 1979 0.7939868294424042 1980 5.833190126100296 1981 2.5379606555117884 1982 7.15655658678997 1983 6.889221077908189 1984 4.649150409062304 1985 5.034427441834007 1986 7.12508556316117 1987 7.257022039979498 1988 8.26840325330501 1989 10.147824001678973 1990 10.663247434785552 1991 4.4902932429903935 1992 6.181797630058461 1993 -3.615480737935666 1994 -5.45452262792769 1995 4.82177655975753 1996 -4.874090360060239 1997 6.031461276939588 1998 1.589316605734425 1999 2.4003734741535663 2000 -1.1034859631453846 2001 7.428625760157671 2002 1.5591841818842318 2003 3.913536917461487 2004 1.3326766635983704 2005 -1.2292606092627156 2006 5.8153262720156675 2007 4.799179456452732 2008 -2.8959664824417337 2009 0.002899985779587804 2010 -3.4473031339425373 2011 4.829360036967025 2012 12.860513462991186 2013 5.181859137190198 2014 3.7393869197726963 2015 10.01219206310867 2016 12.570242941664025 2017 6.109708165620074 2018 4.676476590047556 2019 2.758713237405196 2020 -1.6941970794195058 2021 -0.6451319822659327 2022 6.653877884912542 2023 9.555689372250043