Year % of GDP 1960 3.5315712187958903 1961 3.7645429362880902 1962 3.71108343711083 1963 3.38733905579399 1964 3.42246520874751 1965 3.5544186046511594 1966 3.14398111723053 1967 3.25957446808511 1968 3.27555555555556 1969 3.07933789954338 1970 3.2564885496183202 1971 3.4997938144329903 1972 3.4455205811138 1973 3.34945054945055 1974 3.19302137958854 1975 5.11945392491468 1976 4.94302721088435 1977 4.7136230237621906 1978 4.1873064036917595 1979 3.3572585580072696 1980 3.9003132966796703 1981 3.82453186997909 1982 4.29815131212686 1983 3.93760520546007 1984 3.672848473749753 1985 3.5892304005492868 1986 3.6916104847419633 1992 3.685868097338263 1993 3.5367322026499908 1994 3.8021236407001595 1995 3.3211068413260665 1996 3.315350046282399 1997 3.4999479423584123 1998 2.731141872285698 1999 2.9424510946123474 2000 2.897794639231656 2001 2.904840383954484 2002 3.0451157479836994 2003 2.8864919032847633 2004 2.6109787802374207 2005 2.5835796424418067 2006 2.564130889305158 2007 2.5049571961707287 2008 2.4723568786170467 2009 2.771747087197789 2010 2.6210767075561283 2011 2.56570106550866 2012 2.7214593755735286 2013 2.7686420323954666 2014 2.865920772824207 2015 3.16752785921098 2016 3.235570075531411 2017 2.858188938399835 2018 2.7768671879242324 2019 2.9185177213664857 2020 3.000172358351389 2021 2.7155102259726034 2022 3.768802966170173