Year	% of GDP
2001	2.1080385373332793
2002	2.1354364034798086
2003	1.7094129379377887
2004	1.742233543670562
2005	1.647653229079878
2010	0.8554492061678558
2011	0.703756923948915
2012	0.5979597967322381
2013	0.5171243702979204
2014	0.4800757344728428
2015	0.5141752075763001
2016	0.4310635311093143
2017	0.4636591268154475
2018	0.4872697491287338
2019	0.5160393428136322
2020	0.3363802166557502
2021	0.34715746300026884
2022	0.3575251852968454