Year	% of GDP
1970	1.776671289892483
1971	1.6629229457488999
1972	1.830743920860581
1973	2.7251197997440677
1974	2.190164095855998
1975	2.421184967174972
1976	2.1864672502774902
1977	3.4666002690244495
1978	3.280116578300249
1979	2.7738787592017893
1980	2.7973555654101214
1981	1.8491187223607997
1982	2.694696430050475
1983	2.1985810003356696
1984	2.1217467721260483
1985	1.6906755160533053
1986	2.657102362492654
1987	2.5376955218035793
1988	2.724368685959278
1989	2.841198870600944
1990	2.926554158230607
1991	2.80138767881889
1992	3.523383442606422
1993	3.368108307543738
1994	3.9701500654033817
1995	5.126146266391734
1996	4.600530372262
1997	4.090438874947652
1998	4.13629337896037
1999	2.7596561286268617
2000	2.405016173459111
2001	2.3722071367499398
2002	2.623638770304376
2003	3.608830503467377
2004	2.6864611069047526
2005	2.4263344480533955
2006	2.134249829652702
2007	2.6221938152200415
2008	2.681679003734255
2009	2.7095919272264055
2010	2.2467776819345824
2011	2.303253447687886
2012	2.4169986272212918
2013	2.3583539941334863
2014	2.4683618176980735
2015	2.5618057956705096
2016	2.716816671822515
2017	2.629502038423327
2018	1.7707933972168393
2019	1.6507609040175428
2020	1.8317682576497818
2021	1.777947674352