Year	% of GDP
1971	1.65421998500824
1972	1.56881999969482
1973	1.83042001724243
1974	1.88065004348755
1975	1.98008000850677
1976	2.23794007301331
1977	2.14983010292053
1978	2.20418000221252
1979	2.19807004928589
1980	2.13094997406006
1981	1.97245001792908
1982	2.01366996765137
1983	1.99576997756958
1984	2.06984996795654
1985	2.43543004989624
1986	2.67812991142273
1987	2.97745990753174
1989	2.36382007598877
1990	2.51680994033813
1991	2.56676006317139
1992	2.54967999458313
1993	2.38644003868103
1994	2.58930993080139
1995	2.79531002044678
1996	2.81057000160217
1997	3.02230000495911
1999	2.61149001121521
2000	1.83782005310059
2004	1.76759004592896
2005	2.04972004890442
2006	2.39550995826721
2007	2.63527011871338
2008	2.74622988700867
2009	2.59078001976013
2010	2.28687000274658
2011	2.22175002098083
2012	2.13628005981445
2013	2.49343991279602
2014	2.46592998504639
2015	2.6500198841095
2016	2.41700005531311
2017	2.13700008392334
2018	2.33200001716614
2019	2.21499991416931
2020	2.05699992179871
2021	1.68700003623962