Year	% of GDP
1990	8.445308269513422
1991	8.408655826689607
1992	8.510657803062449
1993	8.141414601382042
1994	9.4488939740656
1995	10.542260750541804
1996	10.686866495522532
1997	10.442653281666091
1998	10.427628845418738
1999	10.148931691400904
2000	10.620362172189898
2001	10.451656099131705
2002	10.502935075733006
2003	10.905205076478321
2004	11.137533558516179
2005	11.547949481856493
2006	10.743673901211464
2007	11.869180450848898
2008	12.3003881528778
2009	14.129854938721323
2010	14.8983557656354
2011	13.056691072939863
2012	13.890901465957356
2013	15.168880160853924
2014	16.233885666540537
2015	16.99260633887555
2016	18.575933657050207
2017	19.937328366262363
2018	22.016896598701358
2019	22.40134790879793
2020	19.365426671834744
2021	19.882121562855957