Year	% of GDP
1980	29.20353982300885
1981	25.203252032520325
1982	26.153846153846157
1983	31.060606060606062
1984	32.857142857142854
1985	34.285714285714285
1986	29.927007299270077
1987	28.87323943661972
1988	30.82191780821918
1989	27.77777777777778
1990	30.666666666666664
1991	28.125
1992	23.39142091152815
1993	5.999914618007063
1994	2.6465698769810486
1995	4.032902674467823
1996	19.59573219594158
1997	17.837458561110015
1998	27.170452599510163
1999	26.4529962778062
2000	26.58131588092204
2001	30.32774647887324
2002	28.501182939914166
2003	29.095876974813468
2004	30.987449487495294
2005	33.329604419623266
2006	29.734805908672286
2007	33.454554013816804
2008	27.689791296415713
2009	13.98587790503725
2010	20.929149397263984
2011	23.120749070845626
2012	26.02762232498118
2013	21.7000864850024
2014	25.65035716537419
2015	26.877159314576822
2016	28.90310699532186
2017	25.124817610062895
2018	27.926295896328295
2019	27.168228492136908
2020	24.6056865974412
2021	20.678850207496215
2022	24.06666277793028
2023	25.94413466091768