Year % of GDP 1964 95.82283600552122 1965 99.29855620049275 1966 98.46113266877462 1967 100.9087005906406 1968 99.8965385252007 1969 98.56003647883269 1970 100.83818496140817 1971 106.54972919356362 1972 102.12064841881478 1973 101.27519014004326 1974 107.22070330913547 1975 104.68623339182753 1976 99.30998899284535 1977 96.57670036023443 1978 109.79982729432658 1979 101.83374817612223 1980 106.33611180352025 1981 103.23787409700722 1982 103.79627547054855 1983 100.49100288721759 1984 101.41770858312063 1985 101.0274611255054 1986 100.00987568555135 1987 105.11147810466636 1988 105.3968276233584 1989 111.80376505025407 1990 105.19619717827311 1991 101.25623637757133 1992 99.90736254956008 1993 95.21636696252311 1994 96.86455652838532 1995 105.92441830398809 1996 106.25394259867033 1997 107.85667644191388 1998 110.63668638830701 1999 109.85474111093076 2000 110.75915443730796 2001 114.33356106176996 2002 110.83068613919815 2003 111.73264816015805 2004 110.34724941518242 2005 110.42928534849636 2006 109.21236428198951 2007 109.9412508151862 2008 110.61425065383088 2009 105.04810965300848 2010 107.04269199445191 2011 110.58221065442663 2012 109.66625838989879 2013 110.74455662827447 2014 112.76126009458953 2015 110.34683614946843 2016 108.3655260213767 2017 110.91153589906683 2018 108.82758350448225 2019 108.93529393780474 2020 108.56861411078043 2021 108.03424888394768 2022 107.8106511354439 2023 107.41850211937619