Year	% of GDP
1975	24.88802918999832
1976	25.05915143925872
1977	24.15612140486198
1978	23.685362149523716
1979	24.52380246053988
1980	24.22578305227363
1981	25.21073756278616
1982	24.025946846421185
1983	23.13813533402642
1984	23.11507598298096
1985	22.88979680313717
1986	21.286499168331385
1987	19.279179185946404
1988	19.62866966819411
1989	20.84475304033723
1990	20.97782053841102
1991	21.365496167167862
1992	19.85516765629186
1993	20.404848998673597
1994	19.619041853186843
1995	18.29427023236198
1996	17.850956119341095
1997	19.32280357488485
1998	20.40363912935763
1999	20.1570303452468
2000	19.59467710859765
2001	20.224216472393568
2002	19.55814191325648
2003	18.763997694555513
2004	18.984914308273428
2005	19.02150176624336
2006	18.357033832823642
2007	19.641416627071138
2008	19.42778252479348
2009	18.678995904869716
2010	20.073058803488603
2011	17.69182351715086
2012	19.302805621781065
2013	19.95799122901425
2014	21.310957301694913
2015	22.907171087540608
2016	24.211630856275647
2017	22.498338503729663
2018	21.747013531575586
2019	23.371557377877934
2020	20.030838942305653
2021	16.55388785625864
2022	18.432920166974608
2023	23.293863936465133