Year % of GDP 1960 32.350545898087155 1961 31.763753085964055 1962 29.99452984695467 1963 30.79559583145007 1964 32.71456746329052 1965 32.646472242920794 1966 32.60859963356269 1967 32.00796969058875 1968 32.100544953892665 1969 32.56747126741673 1970 29.78799498086365 1971 37.32229029660766 1972 31.828731357241566 1973 35.223268744134835 1974 46.72246838863719 1975 47.647587769460344 1976 46.59490402066097 1977 49.99871970084462 1978 47.60173201636221 1979 50.81981159280236 1980 55.958375113488096 1981 33.945306528843 1982 31.731455518795876 1983 29.52807707854598 1984 30.907410942567957 1985 30.3128076953273 1986 28.041787021834725 1987 27.520373703016944 1988 28.147561460398926 1989 31.28111604746874 1990 19.09661276642405 1991 27.10855356959699 1992 34.547468153163585 1993 32.32152246323186 1994 30.429935373151636 1995 25.690284273775067 1996 24.51252546394372 1997 24.16795150829402 1998 21.652284237399094 1999 42.234850073729135 2000 44.43431796579305 2001 44.75863732980039 2002 38.7574633618311 2003 41.844657694826715 2004 48.51030905935507 2005 50.79846225035513 2006 47.32647714437061 2007 48.57116163631577 2008 52.68484082518325 2009 46.011403411555 2010 47.565057263676806 2011 53.00664566136018 2012 50.9950225683772 2013 46.70638340030454 2014 44.59390468612292 2015 38.81756975216602 2016 35.807137092127284 2017 38.97077237100847 2018 42.67412384437828 2019 40.78998173008378 2020 34.65465085109868 2021 40.89263189534566 2022 46.30101453233675 2023 45.147292642566136