Year % of GDP 1970 27.39175635430963 1971 27.03535422578391 1972 26.930666389119327 1973 26.919366908919635 1974 29.114369540729623 1975 28.094636251650744 1976 28.75252685288663 1977 27.953956811106078 1978 29.115092356731132 1979 30.880775525753247 1980 31.693071541178757 1981 33.00066133904298 1982 31.741496438194964 1983 30.478198536274874 1984 32.751017651773275 1985 34.92132182862843 1986 31.997714792758046 1987 31.406204961320178 1988 33.070925786466034 1989 35.015202854118485 1990 35.69741439060971 1991 34.59048816948041 1992 33.15526772195118 1993 31.463898092350355 1994 32.158533944665194 1995 33.5331403455378 1996 34.24927610735743 1997 37.02808273849567 1998 38.35102118646204 1999 39.35703788529814 2000 43.34627395198872 2001 44.61755551794834 2002 45.31938619858 2003 44.57041471913996 2004 46.86721497402127 2005 48.619752204693235 2006 50.841668861823486 2007 52.560869422371034 2008 53.24886061640871 2009 45.20741656084372 2010 51.26216032733593 2011 53.94867085163945 2012 53.97367619653024 2013 53.44129329672236 2014 53.38657904624239 2015 53.0890605587958 2016 52.40639364980561 2017 54.0511531414978 2018 55.462219117823366 2019 55.76078481129376 2020 51.5849469422098 2021 55.95183730231722 2022 62.0831749838848 2023 59.47718589291762