Year	% of GDP
1993	4.40791988372803
1994	4.33663988113403
1995	4.4307599067688
1996	4.49470996856689
1998	4.46187019348145
2005	4.10731077194214
2006	4.02527379989624
2007	3.92000007629395
2008	4.54924011230469
2009	4.34000015258789
2010	5.09588003158569
2011	4.98425006866455
2012	4.92844009399414
2013	4.93538999557495
2014	4.92102003097534
2015	4.85515022277832
2016	4.83923006057739
2017	4.87182998657227
2018	4.97933006286621
2019	5.11676979064941
2020	5.58759021759033
2021	4.51000022888184
2022	4.54389047622681