Year	% of GDP
2001	21.500557315738806
2002	22.690393442798186
2003	22.44134261093112
2004	22.279780614034603
2005	21.82048280126709
2006	25.003290807323758
2007	22.947370666004332
2008	24.835433852124712
2009	29.522440221523578
2010	27.04239389676642
2011	25.486918822554184
2012	25.93589379508743
2013	25.76893697622542
2014	26.414256575144623
2015	27.710262812554788
2016	28.030194193954536
2017	27.793344492685552
2018	26.68854410827916
2019	27.979190543528045