Year	% of GDP
1999	2.68529009819031
2000	2.5650200843811
2001	2.65844988822937
2002	2.58010494709015
2004	2.803959965705875
2005	2.8372700214386
2006	2.8199999332428
2008	2.750200033187865
2009	3.13160502910614
2010	3.34388995170593
2011	3.124369978904725
2012	3.3106449842453003
2013	3.45445990562439
2014	3.32569003105164
2015	3.57060992717743
2016	3.188679933547975
2017	3.6326149702072152
2018	3.39011991024017
2019	3.483335018157955
2020	3.5992249250412
2021	3.395879983901975
2022	3.22449994087219