Year	% of GDP
1980	0.5226032086704079
1981	0.363416224929109
1982	0.2922801298510697
1983	0.31665467376884343
1984	0.32912967250180186
1986	0.10533049935451377
1987	0.132658483685423
1988	0.06831355511226594
1989	0.0901764390318432
1990	2.460605509659923
1991	1.5060767856187087
1992	2.04448389884891
1993	4.234784295600853
1994	7.98636049479779
1995	4.772174893665406
1996	3.0579030184830445
1997	2.8830056078486876
1998	1.624023372612098
1999	2.7391049927806477
2000	5.263632899765718
2001	4.202939580235163
2002	4.401164985317626
2003	4.232397166440897
2004	5.803479464485959
2005	8.640785904307025
2006	9.540414061647976
2007	10.08794289010864
2008	13.198652469258471
2009	6.290888637677942
2010	8.0287137194793
2011	9.15001684464527
2012	6.914551125697059
2013	5.75205627160341
2014	4.326006080374926
2015	1.6812475815385513
2016	1.3083959334082131
2017	2.0583956701392334
2018	2.719012031510618
2019	2.0684424430309654
2020	0.9606330536736019
2021	1.8363040213623976