Year	% of GDP
1970	0.16046311312793676
1971	0.17800132615536682
1972	0.18827662450775715
1973	0.1821447114772561
1974	0.8088407853546676
1975	0.7489966301897897
1976	0.7752693559531982
1977	0.7866079900770241
1978	0.7166734284114032
1979	1.3939773923519572
1980	1.6865726065263984
1981	1.3264770444906342
1982	0.8839307337588753
1983	1.1351691060441103
1984	1.0641853591035442
1985	1.0245100741896929
1986	0.3569045695631124
1987	0.48868385386204194
1988	0.30757520711598946
1989	0.41878665323126135
1990	0.5194070915937571
1991	0.3077789544768933
1992	0.2977232755908425
1993	0.2684924854837871
1994	0.23926613443945816
1995	0.24231746311660576
1996	0.3187706701159381
1997	0.24191111217047045
1998	0.10048173441819849
1999	0.211261130068758
2000	0.41867286983043384
2001	0.2833749445951962
2002	0.2897031332688918
2003	0.3083072611996675
2004	0.37464462769444806
2005	0.490120347338919
2006	0.5139770774558452
2007	0.4934626870544353
2008	0.6518319769181704
2009	0.34046623491179306
2010	0.4009733577964634
2011	0.5489879650732951
2012	0.4421756357630098
2013	0.4517409623720527
2014	0.40938647436546083
2015	0.11585861286349405
2016	0.13242172453520132
2017	0.20096480709937015
2018	0.33497187716317695
2019	0.3320810462050873
2020	0.17354149466913343
2021	0.5002649135327942