Year	% of GDP
1976	25.54352993201039
1977	28.550104524373793
1978	31.58665049991055
1979	30.65700891603374
1980	25.103065653075763
1981	24.51807630978985
1982	26.420513522184947
1983	30.08424665137096
1984	32.095009854780365
1985	32.04072761622926
1986	35.422048758275416
1987	39.17007405824099
1988	41.417357107716924
1989	38.71988422726412
1990	39.026192440652544
1991	39.03767404634835
1992	38.13350427895286
1993	38.19792218077659
1994	37.89659796912375
1995	37.682640300536306
1996	35.965810904207366
1997	35.91391945615679
1998	37.72344712190625
1999	35.37572138943077
2000	33.89358140204845
2001	31.937637184407315
2002	31.454400861146215
2003	32.98186327107534
2004	35.462260619603384
2005	33.765623625266045
2006	32.89055346348429
2007	33.45347260751379
2008	33.32190514001836
2009	33.28145475550333
2010	35.04450744179393
2011	34.67131667655816
2012	34.6637869433941
2013	34.84908939476783
2014	34.987081526997166
2015	36.34866468452378
2016	36.78522554249544
2017	37.014063947339494
2018	35.85512284937577
2019	34.7803823269428
2020	36.2287463601759
2021	36.75142807388189
2022	34.44850360100278
2023	33.77129453542264