Year	% of GDP
2002	6.230529595015576
2003	6.2953995157385
2004	8.099173553719009
2005	9.142318567389255
2006	9.292929292929292
2007	8.422174840085288
2008	8.839190628328009
2009	10.69182389937107
2010	9.637046307884855
2011	10.150891632373114
2012	10.589812332439678
2013	11.398963730569948
2014	13.461538461538462
2015	21.0989010989011
2016	32.35772357723577
2017	24.294871794871796
2018	17.06379707916987
2019	15.495342929720577
2020	12.237762237762238