Year	% of GDP
1976	0.1854409822432881
1977	0.8172605736674251
1978	0.869126601591419
1979	1.0994758842020578
1980	1.8671619324374862
1981	1.881767469937742
1982	2.8418479859512082
1983	3.6481726799113745
1984	2.646538980298972
1985	2.255417148534543
1986	2.6466500802944184
1987	3.0776520952712216
1988	2.873027471336922
1989	2.63354545837677
1990	2.4648939830946555
1991	2.4852333734649075
1992	2.8754093621089782
1993	3.0373252263956365
1994	3.4081340388195174
1995	3.167296319865446
1996	2.8955751560360707
1997	3.1641028158335036
1998	3.212565379045598
1999	3.5240376608963313
2000	3.6865967756654503
2001	3.8979462709813504
2002	5.222669239176068
2003	5.305388202752494
2004	5.5043731491837065
2005	6.210062117809496
2006	7.559662670674997
2007	8.24291009587609
2008	9.756552326716475
2009	10.266539875112986
2010	9.412414408321867
2011	9.385980433942137
2012	10.591514447782279
2013	9.244700274258461
2014	8.668994886691483
2015	7.837971797776945
2016	5.11803590403674
2017	4.596677408237847
2018	4.843822712870647
2019	5.22841812859815
2020	5.81626795442765
2021	5.334378052654184
2022	4.6737649893724775
2023	5.258160463937752