Year % of GDP 1960 39.64394208296647 1961 42.52550467142669 1962 44.8389926172992 1963 47.34535685186408 1964 48.576702613426605 1965 50.60975609756099 1966 50.94850948509485 1967 50.77349314498388 1968 62.94736842105263 1969 52.56525652565257 1970 60.913705583756354 1971 61.563876651982376 1972 60.542879622344614 1973 61.96518146946002 1974 64.77518634287088 1975 63.792118789263284 1976 66.32148377125193 1977 69.30966469428009 1978 68.52438899682994 1979 65.24992517210416 1980 66.44230186162149 1981 71.53032832498609 1982 69.27419740682264 1983 62.56561807364778 1984 57.96219856615251 1985 51.23175935312007 1986 49.12874011234667 1987 48.4421882103349 1988 43.9296496960172 1989 46.13626670743778 1990 49.79191333385325 1991 46.52887118527115 1992 41.57169149167228 1993 39.11240780908911 1994 40.358211043674466 1995 43.758673803968215 1996 37.12713079199995 1997 47.72367660057399 1998 52.551867219917014 1999 43.73181291253637 2000 40.092919619788084 2001 38.86745733006091 2002 39.678347280334734 2003 37.00718468111601 2004 41.384035105757924 2005 35.581798512580924 2006 34.83160715313049 2007 42.01656201355722 2008 52.06131734699393 2009 52.64712677497604 2010 52.49467057294993 2011 54.72506986342677 2012 63.76025678866185 2013 64.40327816502372 2014 58.21457389805703 2015 59.80999367318505 2016 45.85333500557308 2017 39.003908887795475 2018 43.22696007091012 2019 46.00516370491079 2020 46.37292913998522 2021 46.84428778732398 2022 42.06642283337957 2023 35.710086827715934