Year	% of GDP
1971	3.65630006790161
1972	4.01131010055542
1973	4.04297018051147
1974	4.04003000259399
1975	4.66899013519287
1976	4.85082006454468
1977	4.84027004241943
1978	4.89441013336182
1979	5.05744981765747
1980	5.0687198638916
1981	5.06440019607544
1982	5.04606008529663
1983	4.82426977157593
1987	5.596519947052
1988	5.55604982376099
1989	5.3671498298645
1993	3.42903995513916
1994	3.63566994667053
1995	3.40211009979248
1998	3.29797005653381
1999	3.37812995910645
2000	3.46011996269226
2001	3.40082001686096
2002	3.40898990631104
2003	3.46662998199463
2004	3.42611002922058
2005	3.31493997573853
2006	3.27667999267578
2007	3.27934002876282
2008	3.27241992950439
2009	3.77999997138977
2010	3.59951996803284
2011	3.60527992248535
2012	3.41945004463196
2013	3.40875005722046
2014	3.41529989242554
2015	3.31221008300781
2016	3.14643001556396
2017	3.13057994842529
2018	3.07782006263733
2019	3.15533995628357
2020	3.30628991127014
2021	3.46000003814697