Year	% of GDP
1984	4.997561053424551
1985	3.4103253318661806
1986	4.5601232148504245
1987	4.741678574365115
1988	-0.612814680045337
2000	8.529461085539742
2001	1.3967128371382898
2002	18.367605843902705
2003	10.564720185808518
2004	14.722405391226062
2005	20.24489326247918
2006	22.56604564369312
2007	19.13907497030029
2008	14.031316972444186
2009	16.62104800895808
2010	9.674717252082138
2011	18.403078150197157
2012	6.868000945022085
2013	5.71723106857919
2014	10.171837163474434
2015	10.747365472472474
2016	17.6387955255376