Year	% of GDP
2002	0.543020009994507
2003	0.650439977645874
2004	0.730949997901917
2005	0.7119500041008
2006	0.677290022373199
2007	0.66540002822876
2008	0.63933002948761
2009	0.706439971923828
2010	0.658060014247894
2011	0.674579977989197
2012	0.649370014667511
2013	0.637000024318695
2014	0.619880020618439
2015	0.594129979610443
2016	0.56538999080658
2017	0.699540019035339
2018	0.716449975967407
2019	0.746580004692078