Year	% of GDP
1971	5.03205013275146
1972	5.15937995910645
1973	5.44860982894897
1974	5.39099979400635
1975	6.26878023147583
1976	6.42422008514404
1977	6.06335020065308
1980	5.07011985778809
1981	5.2884202003479
1982	5.1887001991272
1983	5.06150007247925
1984	4.89905977249146
1985	4.5940899848938
1986	4.38083982467651
1987	4.37180995941162
1988	4.26831007003784
1989	4.12511014938354
1990	4.05552005767822
1991	4.1224799156189
1992	4.3344898223877
1994	4.850830078125
1995	4.83926010131836
1996	4.37194013595581
1998	4.20465993881226
1999	3.98515009880066
2000	4.0147500038147
2001	4.09869003295898
2002	4.61520004272461
2003	4.80098009109497
2004	4.73051023483276
2005	4.92684984207153
2006	4.9733099937439
2007	4.92178010940552
2008	4.90607023239136
2009	5.05902004241943
2010	5.68736982345581
2011	5.5589599609375
2012	5.59000015258789
2013	5.52683019638062
2014	5.59841012954712
2015	5.55358982086182
2016	5.41511011123657
2017	5.43125009536743
2018	5.19807004928589
2019	5.24871015548706
2020	5.49770021438599
2021	5.40000009536743