Year % of GDP 1960 69.1561268629598 1961 62.311084761540755 1962 67.05396861436425 1963 71.76125608521882 1964 68.67166334935771 1965 67.4075437566741 1966 66.98989196775126 1967 66.54715258037072 1968 67.39941083886481 1969 66.5082269233476 1970 64.95167811835466 1971 66.34147511555149 1972 66.39687155175895 1973 65.663698601238 1974 63.97287328621202 1975 58.1245533888674 1976 56.59670650402835 1977 57.753472832317975 1978 58.14078401925599 1979 62.95402901491153 1987 75.43319775590062 1988 73.71828348129873 1989 73.51173620077161 1990 77.13937287613822 1991 80.44422596036922 1992 81.85652655866443 1993 69.2059625707668 1994 69.92190498756992 1995 68.56078874014536 1996 68.52372765361717 1997 69.32637094984275 1998 69.05335622469775 1999 70.14226507196946 2000 69.33201180491109 2001 68.91198430944922 2002 61.89842385949197 2003 63.197806413511756 2004 64.33150084960634 2005 63.029392146466144 2006 63.27018804125959 2007 62.531232907436454 2008 63.074583476516025 2009 62.97814768722907 2010 64.23411476399943 2011 64.2203212799743 2012 64.90339910714906 2013 65.98756553007384 2014 65.38307972508878 2015 65.90583734482627 2016 65.72189146512207 2017 66.73957332125158 2018 69.47018228772332 2019 66.12758630510459 2020 65.7047068081581 2021 62.99008318490967 2022 65.52038299104602 2023 67.15153353551777