Year % of GDP 1960 19.885721691317613 1961 20.93013136858386 1962 22.305174409861397 1963 22.57859368426754 1964 22.25730249401873 1965 22.655981273828537 1966 22.381146427273123 1967 23.1217395424098 1968 23.8532464366799 1969 25.32006107841713 1970 26.615110064432777 1971 27.57880402795595 1972 28.38773126050995 1973 29.118616858586726 1974 27.716398189452924 1975 28.76384101895405 1976 33.939384328263344 1977 27.925680146147396 1978 29.151889558972474 1979 29.900020734205558 1980 28.44125291089363 1981 30.842365173130386 1982 29.6582687073143 1983 26.291704732831725 1984 26.985918916000433 1985 24.22899817492999 1986 23.805034212897596 1987 24.844656455500388 1988 19.56601718319241 1989 67.7773535414933 1990 24.60955222774023 1991 25.76805537830178 1992 34.06157623274159 1993 41.90810284592195 1994 30.867321166412633 1995 27.71813924304931 1996 29.37096515811094 1997 31.957014208329284 1998 32.825394023713834 1999 33.5009150728724 2000 32.41937931365683 2001 36.06181429671988 2002 35.051543465666306 2003 37.06571483093171 2004 37.36197165854554 2005 40.13352248574151 2006 41.6891782085524 2007 45.292242267396034 2008 47.03377729707424 2009 52.321016389221235 2010 52.83088419024014 2011 54.381372899291655 2012 55.17171066035614 2013 55.36991229409828 2014 57.204040282757546 2015 57.99624845741259 2016 61.46638747524187 2017 61.78470656331607 2018 61.29747691470011 2019 62.129454843054894 2020 71.6612555995662 2021 67.15859290152213 2022 66.59637217611095 2023 70.3238823937266