Year	% of GDP
2004	16.881957006873943
2005	19.064788735357247
2006	27.842417234910915
2007	25.043569033741285
2008	20.65209705843242
2009	35.767085891230174
2010	43.60068418248805
2011	19.32130101802126
2012	16.113900554294766
2013	24.0457150214851
2014	19.680927130358057
2015	17.76395858723299
2016	19.618257817025693
2017	22.606783755304086
2018	20.70073453988293
2019	49.941535645300746
2020	20.0341227999957
2021	19.512051184460454
2022	19.839117995094533