Year % of GDP 1974 4.026623638563938 1975 2.8495190816009925 1976 1.9086491739552964 1977 1.6733882419767112 1978 1.4913711359757253 1979 1.8902847269716714 1980 3.0091385309524723 1981 3.4981647892671814 1982 3.324564914889156 1983 2.448079218743258 1984 3.014801951166289 1985 2.549352481087319 1986 2.1592895752291046 1995 1.8633174573566635 1996 1.6098581096214934 1997 1.784552938809125 1998 2.282864712973267 1999 2.2569767149120104 2000 2.2138045291165147 2001 2.2500100165069283 2002 1.8984501443995985 2003 1.4761308583887895 2004 1.5063962748186623 2005 1.5788718526910728 2006 1.7199930983071021 2007 2.219272258818703 2008 2.421588060580068 2009 2.502020312971205 2010 2.3047357800882784 2011 2.378718708612694 2012 2.431687218015475 2013 2.4302105452512057 2014 2.396180134459967 2015 2.300854238531296 2016 2.468040293701792 2017 2.8917932536765503 2018 3.3344967212268606 2019 3.417229768763171 2020 3.312889739124657 2021 3.42182103247424 2022 3.9814556079047985 2023 3.239492949295584