Year	% of GDP
1981	2.688656544463715
1982	1.9059168072385582
1983	3.6270645782203688
1984	3.7258241113607613
1985	3.4896257761098495
1986	2.827003211925065
1987	2.6667470731826755
1988	2.904968688476026
1989	2.735755841743801
1990	1.2890773501977437
1991	1.8634678452584357
1992	1.823968630563764
1993	4.04461860703493
1994	2.2632338651173067
1995	1.3426750322068959
1996	1.5261491890616872
1997	1.5530145247754275
1998	1.7552063054244553
1999	1.2016364962166424
2000	1.9389672150784159
2001	2.383103768499938
2002	3.027597045496353
2003	1.8446722273186358
2004	2.123764789098884
2005	2.5159188112962863
2006	3.157802770945438
2007	2.7818733490436487
2008	1.8673763146082063
2009	2.0001300112787046
2010	1.4820360986226242
2011	1.5814135732867824
2012	2.4553749020015463
2013	2.7495014068804844
2014	3.426344216395531
2015	4.1881898302750225
2016	1.96335545504245