Year % of GDP 1960 88.18461538461538 1961 89.41450980392158 1962 88.18494983277591 1963 83.78125 1964 81.71428571428572 1965 79.28622448979593 1966 55.354320987654326 1967 46.040160642570285 1968 46.43540669856459 1969 42.171052631578945 1970 43.32403258655804 1971 27.944058500914075 1972 43.00546623794212 1973 49.52746730083234 1974 39.393951219512196 1975 36.50886075949367 1976 30.753271028037382 1977 37.584473527662105 1978 30.33334771354616 1979 34.2559967253377 1980 22.43612020232074 1981 24.34776902887139 1982 16.664355943299338 1983 16.258628569545127 1984 15.21385074160437 1985 16.029780413463556 1986 15.83660867110247 1987 14.25374757819527 1988 14.001639004261898 1989 12.624628799666034 1990 12.161649681862178 1991 7.324999863743701 1992 9.077085406374593 1993 8.330235572191215 1994 8.262433406508665 1995 8.780632295719041 1996 7.689283279229439 1997 7.003196531625866 1998 8.322992801875703 1999 8.784630253954031 2000 7.827134815046456 2001 8.29887058675374 2002 6.395312832705715 2003 6.34688612370652 2004 5.984006755675688 2005 5.671130404730657 2006 4.842764808647503 2007 4.889986800022586 2008 4.897048747876697 2009 5.503524307757267 2010 4.862175276552463 2011 4.54395157549887 2012 4.895308671881295 2013 5.064363462277618 2014 3.9607145663379 2015 3.781903446691265 2016 4.924117630076479 2017 4.9636238533400165 2018 4.249775434305065 2019 4.463802088221722 2020 5.309094506707389 2021 5.969617791956753 2022 6.094539065304932 2023 6.344360532095014