Year	% of GDP
1978	0.542684654535786
1979	0.9074936486327327
1980	0.9473356844535282
1981	1.1445979049329749
1982	0.8868710254730926
1983	1.4592002530963115
1984	4.160645610013898
1985	0.3360169239907274
1986	0.07376636404819618
1987	0.06045204310713491
1988	0.06434186511662884
1989	0.15953282920329645
1990	0.25985361828507625
1997	0.8703194225789523
1998	0.6917025753781469
1999	0.7244294646374633
2000	0.6086742392592231
2001	0.728982294029063
2002	0.9361518230777339
2003	1.7842448595236875
2004	0.9600087922865489
2005	1.0992984377798232
2006	1.1206435535744859
2007	1.3409596489845566
2008	1.595565052448255
2009	0.9966707954669101
2010	3.348709357539358
2011	3.038720473868797
2012	2.772312165489212
2013	9.948527960360627
2014	9.152540672849321
2015	7.68470166250658
2016	6.174088675987013
2017	5.649660398064134
2018	4.632610827487757
2019	2.6913011015958563
2020	1.8293335899867134
2021	2.0197258085048615
2022	1.869203995413142
2023	1.351535347337786