Year	% of GDP
2000	12.585212683227445
2001	11.854935482437297
2002	15.038700806174388
2003	17.111857698967132
2004	17.40250704829243
2005	21.055620694709074
2006	22.722013742869503
2007	27.373544761140106
2008	28.97872208372555
2009	19.660234417845345
2010	17.892697599033532
2011	16.712476894639554
2012	20.13286927400201
2013	20.61596228475403
2014	21.73990622744703
2015	19.96382223164025
2016	22.121053434547935
2017	23.781748126213934
2018	24.648796493825543
2019	23.61698930968988
2020	24.765938747697895
2021	21.858656669739936