Year	% of GDP
2002	35.95729695473251
2003	31.49631796597061
2004	33.271818188542426
2005	30.15998632103064
2006	29.30336633004602
2007	30.445655412022543
2008	30.714860741738065
2009	36.072347255405404
2010	37.290689852008455
2011	41.79178202762856
2012	44.65081696717373
2013	46.032086756329115
2014	45.62357266666667
2015	45.237764538327255
2016	44.98771725057536
2017	43.29538883515686
2018	44.36578698522696
2019	44.15482822739964
2020	47.44033688412528
2021	44.07404953361595