Year	% of GDP
1970	2.5405567336655226
1971	2.670414766577811
1972	2.981712759604719
1973	4.342439872631024
1974	11.181804884610777
1975	10.514614788316777
1976	11.22819166007014
1977	11.074063397459891
1978	10.660948123805111
1979	15.011489582439612
1980	16.450302669313476
1981	12.51618213388591
1982	10.573927791828222
1983	10.154593562540889
1984	9.390280635244414
1985	9.176836637383724
1986	5.2079486640329575
1987	6.639367876701956
1988	6.161943440905874
1989	7.5167233088059735
1990	8.547354615912276
1991	4.972545435340809
1992	4.909425136380499
1993	4.686037775708571
1994	4.075680603123768
1995	4.345530856960348
1996	4.624067200373322
1997	4.008812354194337
1998	2.569981147668552
1999	3.686874336146518
2000	5.937340005806615
2001	5.259015203185887
2002	5.061661579708275
2003	5.242064434464479
2004	6.856549357302879
2005	8.129364550737963
2006	8.842101492549629
2007	8.634813417443723
2008	11.019917991833713
2009	6.023808768031953
2010	7.5045176957765785
2011	9.166864222188302
2012	7.244585900582192
2013	6.154960969781843
2014	5.214827142222508
2015	2.8654825027018447
2016	2.549381170777987
2017	3.201970722539798
2018	4.0289136175272064
2019	3.3189966767075614
2020	2.2571442558630643
2021	4.63762848821697