Year	Percent of GDP
2001	3.286
2002	2.68
2003	4.829
2004	7.84
2005	8.362
2006	9.797
2007	16.466
2008	17.571
2009	13.435
2010	19.487
2011	24.762
2012	24.069
2013	26.978
2014	23.966
2015	13.722
2016	11.351
2017	13.228