Year	% of GDP
1990	28.868360277136258
1991	33.33333333333333
1992	33.69565217391305
1993	25.279187817258887
1994	20.097791266228292
1995	20.361935042791366
1996	19.443908694269673
1997	22.6181064798408
1998	22.288620416115393
1999	21.853073827916393
2000	23.61087389695417
2001	20.822851885496004
2002	19.479461173833034
2003	21.49034043670415
2004	25.67040994723135
2005	27.226816624684364
2006	29.317118094541232
2007	29.665734578084972
2008	31.517796330710652
2009	27.69050603379658
2010	28.333542563962983
2011	37.84611629155885
2012	38.38168193190602
2013	35.31383048911679
2014	33.418136238970455
2015	32.201089978867756
2016	29.837070427282015
2017	29.890872640617317
2018	30.70716154349248
2019	29.193510079268474
2020	30.799954582189535
2021	32.31248480599732
2022	29.34025322466592
2023	27.20042498784129