Year % of GDP 1960 17.65051395007342 1961 12.726008344923507 1962 14.10958904109589 1963 14.05579399141631 1964 14.70178926441352 1965 16.211699164345404 1966 17.005516154452323 1967 17.670454545454543 1968 18.6031746031746 1969 20.102739726027398 1970 20.633078880407123 1971 18.882474226804124 1972 20.329643721895536 1973 20.94945054945055 1974 19.661557079467524 1975 21.38364877443376 1976 22.186831875607385 1977 21.952191612231374 1978 17.45457993545515 1979 14.69281163380998 1980 13.588383741822124 1981 16.64666497911657 1982 18.482882522254627 1983 20.760402134361204 1984 17.846443394811136 1985 17.425880810930174 1986 19.654145612802054 1987 20.58151626230061 1988 17.330305011820514 1989 16.635778288160637 1990 16.674265163453335 1991 17.16911576248788 1992 17.941269545111986 1993 18.123203114880912 1994 15.940783301418138 1995 18.486197944488215 1996 22.82823275986663 1997 26.30055180692367 1998 16.771539900904667 1999 16.19514894919707 2000 17.251522952290927 2001 14.914219930355829 2002 14.054761989340628 2003 14.010660010612478 2004 16.57239564471794 2005 21.223735632522875 2006 24.72348602335879 2007 28.016248875868822 2008 30.896647358125424 2009 34.533659251837 2010 41.599783298435035 2011 46.15969158284071 2012 48.73162759242117 2013 56.72071271693543 2014 59.63675115524577 2015 62.59624350875228 2016 65.28375443865828 2017 65.93728309003355 2018 63.13210073684596 2019 61.83160963544019 2020 70.89657681148397 2021 66.07029811856245 2022 48.35148853806505 2023 43.78109982409925