Year % of GDP 1960 43.7348856028693 1961 43.4516085180356 1962 43.9105724546388 1963 45.640826581639 1964 45.4795964353876 1965 45.7173737610032 1966 48.7282560971444 1967 47.9757320993907 1968 48.3849611366385 1969 48.5504213424919 1970 47.0406134240291 1971 46.3698921136443 1972 46.7783038902902 1973 46.3086169109987 1974 44.9034493707812 1975 47.7529664715476 1976 47.6524882407034 1977 45.3726081272167 1978 42.7607851231149 1979 39.7599332024478 1980 39.2745596508477 1981 37.510513738191 1982 36.252047087739 1983 38.2977511329563 1984 40.7209721261242 1985 43.5288370254072 1986 54.6367215795986 1987 49.6153612659152 1988 47.8932801726473 1989 50.7532915497501 1990 50.3305943372786 1991 41.8688111512193 1992 39.3445742310382 1993 34.24086147005 1994 30.2637685059312 1995 30.3457432148402 1996 30.9912563512048 1997 31.5121078956016 1998 34.3205577709779 1999 34.080716816245 2000 131.968484312726 2001 138.830011049778 2002 141.603065068145 2003 140.095372390282 2004 145.647399583914 2005 157.543817098755 2006 169.044478860457 2007 184.492433420023 2008 191.188538707051 2009 201.258722198486 2010 193.039736037174 2011 187.241044750849 2012 182.09624778631 2013 177.015373029516 2014 173.327159302705 2015 169.967708218571 2016 166.560978841387 2017 161.80700955621 2018 161.257701914349 2019 161.38599091228 2020 163.937007542487 2021 155.390854368716 2022 143.365022101847 2023 147.517956458938