Year	% of GDP
1979	0.2942483509910305
1980	0.3784781040018872
1981	0.5791338223790088
1982	0.5843743383643841
1983	0.6583232675805705
1984	0.6091340589734325
1985	0.5626244967420369
1986	0.5962664903294396
1987	0.7594420585632888
1988	1.1762228947067568
1989	1.3555235206218386
1990	1.5703764262518487
1991	1.8273934556189209
1992	2.6344684457921006
1993	4.364813897817382
1994	4.249401508742228
1995	3.841809132496615
1996	3.863259822133839
1997	4.040139447323645
1998	4.158492793806992
1999	3.366008443158299
2000	2.7734210661551226
2001	2.8372794453602665
2002	3.10415613490161
2003	2.960625537099347
2004	3.1063388940214027
2005	4.165433560636243
2006	4.086542610802641
2007	4.09540462183478
2008	3.5390467782939994
2009	2.4057903936191556
2010	3.7823075319372697
2011	3.4975135575176513
2012	2.833370378999183
2013	3.0505416209663854
2014	2.5776508301336363
2015	2.299229326421464
2016	1.6188506258348396
2017	1.6127004386314618
2018	1.8713454935502956
2019	1.5166287724038734
2020	1.7287506678319429
2021	2.1005446900223865
2022	1.2627817934847745