Year	% of GDP
1981	1.5297460641167355
1984	0.6314420761275494
1985	1.1014993923666123
1988	3.628948063198724
1989	2.5313322928882807
1990	3.093240446250063
1991	5.369580442958669
1992	8.365805061712758
1993	11.271378644245221
1994	16.04210396335927
1995	9.052390349505908
1996	10.256263490535098
1997	15.412061223277757
1998	11.126652190941481
1999	11.34686701615062
2000	7.680894512121904
2001	6.454617771090059
2002	3.961742303679105
2003	6.190633103927853
2004	9.081451597803062
2005	10.993457657804063
2006	14.7057526894816
2007	25.304314240937813
2008	18.570372200999522
2009	24.01468640128356
2010	24.807327195147888
2011	19.31709987958982
2012	19.951731488023853
2013	18.21824964492783
2014	15.517167765465087
2015	12.701503641374197
2016	16.859653743265756
2017	17.11698173821328
2018	19.78493438453582
2019	25.61262468883336
2020	39.3344192382757
2021	34.78216045096534
2022	28.526341386418647