Year	% of GDP
1979	0.03165840423116718
1980	0.02024642903614301
1981	0.03315616939828711
1982	0.03716556199465593
1983	0.01232354187722101
1984	0.1065208911439121
1985	0.09324408988055317
1986	0.010460839730306828
1987	0.013793565449155498
1988	0.1154342292017854
1989	0.11424527276755662
1990	0.10188302631572096
1991	0.0938940762307132
1992	0.11377621490213977
1993	0.16920976334572455
1994	0.28826466509934295
1995	0.26622185770863166
1996	0.3966541578840608
1997	0.3772794649056925
1998	0.394275959759482
1999	0.39776577517760137
2000	0.6501659832133322
2001	0.8637858563567257
2002	0.7057833866808563
2003	0.8529078188834255
2004	0.9274555129055198
2005	0.9231136373172337
2006	0.5039648481008685
2007	0.4727196553175817
2008	0.43970507643065465
2009	0.43939080298660094
2010	0.42193183823359093
2011	5.426587231532666
2012	5.222694835903558
2013	2.9669733474121847
2014	3.665041634576814
2015	10.084688798617108
2016	5.305684955478359
2017	5.8544092387212725
2018	5.231238338713632
2019	5.931833757185465
2020	6.127594404123302
2021	5.240847687161832
2022	6.237978886654834
2023	6.406478317692327