Year	% of GDP
1960	2.2716144541403214
1961	2.2565551179669483
1962	2.684500239577032
1963	3.135722600753222
1964	3.1693998707093796
1965	3.5076681335494846
1966	3.4672416528793657
1967	3.5471606623174265
1968	3.6452587670821908
1969	3.7937376142833803
1970	4.1766309868657885
1971	4.126362458891586
1972	4.016603908014163
1973	4.049869149897978
1974	4.413322484326242
1975	5.060379745345015
1976	5.056104150284729
1977	5.899527273749048
1978	5.715484864187869
1979	5.006796867127147
1980	4.561339918221863
1981	4.790395853887683
1982	5.561559325996101
1983	5.131841718648431
1984	5.005987235552367
1985	4.717430527757953
1986	3.9400844825146533
1987	4.604434415966071
1988	4.26109311174026
1989	3.8251713777448204
1990	3.5735591989023274
1991	3.551877808953523
1992	3.1564384507169123
1993	2.962387629183026
1994	2.7878092829186896
1995	2.7153505950436343
1996	2.593824116512692
1997	2.7160446620886463
1998	2.793653919904029
1999	2.639061682141039
2000	2.5317058210458283
2001	2.5228106284434992
2002	2.4833469400781754
2003	2.433923208308883
2004	2.36804802013807
2005	2.3330066395114017
2006	2.252382206469872
2007	2.2465755411220405
2008	2.2289227597068106
2009	2.52577254460554
2010	2.317978698136606
2011	2.199568808077062
2012	2.2849227787363726
2013	2.39530339000845
2014	2.5413040019998028
2015	2.639674434491157
2016	2.4370387128663666
2017	2.448511762777521
2018	2.402426149231782
2019	2.3381586342728604
2020	2.5146684675305173
2021	2.2277701802982937
2022	2.1377668053256333