Year % of GDP 1960 33.65044086859981 1961 32.792717506163726 1962 31.216529765170588 1963 31.818510999080935 1964 34.0719454737601 1965 34.04331568509719 1966 31.985765543287425 1967 32.453294980988126 1968 31.924966521664256 1969 31.72037022539897 1970 30.390853663046904 1971 33.99965292638178 1972 31.552501660779615 1973 33.557848111836584 1974 41.04674353595963 1975 40.13264717921005 1976 39.971496678611764 1977 43.05357520705695 1978 42.589672303450904 1979 43.49527434836948 1980 49.96481306744599 1981 33.67507744226225 1982 30.363797534488572 1983 30.463286588544193 1984 32.63362893318977 1985 32.402515301983414 1986 32.72783578581972 1987 33.056093237852096 1988 33.60011651923774 1989 35.33454323516571 1990 32.85043961998818 1991 30.352939559012174 1992 34.27673917781507 1993 33.951172156370696 1994 34.56907659557703 1995 32.68289011151604 1996 31.35531606706217 1997 31.183294056993816 1998 27.917309861781636 1999 39.984553344922986 2000 41.82178688261422 2001 43.50640381682772 2002 41.03422924530833 2003 41.00490365948398 2004 43.522272539881335 2005 45.605136262815364 2006 45.9975696002189 2007 47.87992140297017 2008 53.12031195934135 2009 43.57250717886185 2010 46.31496623535129 2011 52.04356493537135 2012 50.66251866029637 2013 47.637686747926175 2014 46.05476948112142 2015 40.79962871369807 2016 39.11662826557747 2017 39.92721895492676 2018 41.81066887048328 2019 39.503465108086246 2020 35.60768772119238 2021 41.14269907953569 2022 44.76152578952548 2023 42.1751553363694