Year	% of GDP
2000	1.16569558306638
2001	0.917310272291269
2002	0.511203519371309
2003	0.36595962878133
2004	0.327856971227387
2005	0.273893892366497
2006	0.247945769445521
2007	0.217686641528775
2008	0.183103590673755
2009	0.167417638932269
2010	0.175003171260919
2011	0.200366513370464
2012	22.3846155797021
2013	38.5807589671767
2014	42.2589431833527
2015	47.3600033533835
2016	36.9632383844972
2017	47.9531673593019