Year	% of GDP
1970	0.8228531767669014
1971	0.5784666477872464
1972	0.6173054131432263
1973	1.1126350301936403
1974	1.5280220620635092
1975	0.9213330401265785
1976	0.7962447793126572
1977	0.9432878409641037
1978	0.49529812465692197
1979	0.7186677294596027
1980	0.7872474301832486
1981	0.4896829190367288
1982	0.4095693460814291
1983	0.4500326805174359
1984	0.36007954508357204
1985	0.3831546482105239
1986	0.38360504734881834
1987	0.38767061536691255
1988	0.6833317905976615
1989	0.6673252659114273
1990	0.5088552535395631
1991	0.4166665634858182
1992	0.41900150484995635
1993	0.326248951426373
1994	0.3221353506087996
1995	0.24587920286776058
1996	0.202551623409061
1997	0.1782569894049651
1998	0.19092182833227037
1999	0.17476082865146572
2000	0.19353018208627393
2001	0.17710993657071178
2002	0.18963303186054178
2003	0.17333351168978842
2004	0.271537222521934
2005	0.5515956603146728
2006	0.8217938154692295
2007	1.2542368417182048
2008	1.58727220296523
2009	0.922060421629718
2010	1.3396360356169368
2011	1.485019670727785
2012	0.9729128868378945
2013	0.8480009297946487
2014	0.5978522721360567
2015	0.36360611910934265
2016	0.44143150773063117
2017	0.582822394140839
2018	0.5240449000518347
2019	0.47387285823959774
2020	0.521380753697566
2021	1.2021077786935759