Year % of GDP 1960 56.38766519823789 1961 56.32823365785814 1962 55.41718555417185 1963 54.93562231759657 1964 53.57852882703777 1965 52.460538532961934 1966 52.08825847123719 1967 51.27840909090909 1968 51.11111111111111 1969 51.1986301369863 1970 51.959287531806616 1971 56.206185567010316 1972 56.52023521272916 1973 57.829670329670336 1974 61.03267446551028 1975 58.9512876202296 1976 56.073858114674444 1977 57.14285714285714 1978 57.936658448700925 1979 55.473165112846914 1980 61.15359614575766 1981 59.23300847993925 1982 59.42414364956825 1983 62.27689165671878 1984 63.073768814980156 1985 58.20176375888647 1986 53.9617809954326 1987 68.27784090072656 1988 63.494306420222166 1989 65.60695993690061 1990 68.58046172062193 1991 70.6013122326984 1992 69.53339589232537 1993 69.0933867361742 1994 69.95766059147886 1995 70.31154353323814 1996 67.27337641984285 1997 68.03709032917709 1998 64.56887603711671 1999 66.03562649628333 2000 66.94517785760814 2001 64.83623638705261 2002 63.82890045374201 2003 65.31369940612373 2004 64.2794163931876 2005 63.4002327896553 2006 61.716979348208866 2007 62.080577000089264 2008 61.08036578770355 2009 61.57246510902608 2010 62.67912660162729 2011 62.71308739722602 2012 61.910068990333535 2013 61.303434293387035 2014 60.36777464446779 2015 60.02161429596906 2016 59.4083513843907 2017 58.60885053852992 2018 56.18169111387267 2019 56.895836164629756 2020 56.768052909260604 2021 55.24516816512135 2022 57.30857196177188 2023 59.40231801443314