Year % of GDP 1976 5.106318913692828 1977 4.410135604450674 1978 4.4146143801265865 1979 4.2889257932651175 1980 4.326402537128432 1981 3.966934702050049 1982 3.646038872759288 1983 3.412209287041431 1984 3.582349703598584 1985 3.1351648060728565 1986 3.2269628972350675 1987 3.1974932236406115 1988 3.048461328334274 1989 3.0115548504799516 1990 3.0971198738227224 1991 2.8112819938322726 1992 2.453334563370014 1993 2.204440796490962 1994 2.37154589541966 1995 2.1585963322881794 1996 1.9824709949902728 1997 1.9054834431022356 1998 1.793343923788651 1999 1.7222173221189754 2000 1.6473002129897933 2001 1.6707033957316781 2002 1.5627744114919597 2003 1.4919318979018854 2004 1.476474392677711 2005 1.259399634824406 2006 1.303189458617389 2007 1.4163915602326476 2008 1.3422230268042579 2009 1.146817767645376 2010 1.2673276722574476 2011 1.4019149342727628 2012 1.348551389938097 2013 1.2547212159419494 2014 1.2007405640414728 2015 1.129790193564496 2016 1.1103164792617166 2017 1.21053643138638 2018 1.1306028910482924 2019 1.052415856196792 2020 1.068081716101349 2021 1.218629132234311 2022 1.385801776513109 2023 1.3402653152876511