Year	% of GDP
1999	3.605504989624025
2000	3.2423249483108503
2001	3.421469926834105
2002	3.27149498462677
2003	3.3827600479126
2004	3.32669997215271
2005	3.517155051231385
2006	3.75944495201111
2007	3.60984992980957
2008	3.85946500301361
2009	4.0983099937439
2010	3.70918011665344
2011	3.7742018699646
2012	3.7037199735641497
2013	3.7872450351715097
2014	3.760075092315675
2015	3.886940002441405
2016	3.819204926490785
2017	3.78976988792419
2018	3.71392011642456
2019	3.606734991073605
2020	4.09100008010864
2021	3.69673001766205
2022	3.57999992370605