Year	% of GDP
1981	14.997842687474858
1982	15.636378223926247
1983	16.059201635626934
1984	17.76158609293023
1985	17.53536464662264
1986	20.765511248812786
1987	22.34490313366099
1988	23.84999390285269
1989	24.21240440621198
1990	17.989220662957482
1991	28.263043541432225
1992	24.90733725361168
1993	25.37561745925116
1994	26.415254545239403
1995	26.52808412048802
1996	25.894389041909193
1997	26.073084764131416
1998	26.641149543392434
1999	22.643270568182945
2000	19.867276280433313
2001	21.676363702844558
2002	25.927581441300084
2003	25.361055102220238
2004	21.874095208011745
2005	20.94469648032134
2006	19.7999530826507
2007	19.66760692826259
2008	19.258643932105546
2009	20.539800404611015
2010	19.2194495951774
2011	17.415606809800856
2012	17.05792965339471
2013	16.625236168948085
2014	16.82180835753372
2015	18.019465369392663
2016	18.02386589327799
2017	17.565136136441065
2018	17.18266537076562
2019	17.631347927179057
2020	19.93181907328167
2021	18.29955953784621
2022	17.26974624501427
2023	16.798545771367962