Year	Percent of GDP
2002	28.874
2003	29.513
2004	32.604
2005	33.148
2006	31.343
2007	30.457
2008	30.765
2009	37.752
2010	45.771
2011	54.069
2012	59.106
2013	66.472
2014	70.924
2015	72.316
2016	70.547
2017	65.901