Year	% of GDP
1992	28.17912412142298
1993	34.05445926420671
1994	31.6319560801279
1995	29.994605103816664
1996	29.331258597140764
1997	28.17787092804252
1998	28.8330742151759
1999	28.456064548636935
2000	28.627136569900536
2001	29.265807211572863
2002	30.50704004799589
2003	32.28052503104291
2004	33.42515073146741
2005	33.85359682488341
2006	33.480670234467524
2007	33.26362161171436
2008	33.699198677997806
2009	37.83950511296444
2010	37.928287695362606
2011	38.07485713553975
2012	38.602056126114995
2013	38.84955081296051
2014	38.212372668594995
2015	36.32308174233565
2016	35.80068813171708
2017	35.47065892850626
2018	36.74163741416477
2019	37.02624210850534
2020	35.67398161875196
2021	35.35689459657437