Year	% of GDP
1970	14.282539464910041
1971	14.9730718261571
1972	15.09930364996813
1973	14.806988284673423
1974	15.037288352245978
1975	16.914843513843266
1976	17.89354161522497
1977	18.376576577687683
1978	18.061880662949008
1979	17.59743465566446
1980	17.708054788008436
1981	18.343972469593087
1982	18.458986519636476
1983	18.788741832802813
1984	18.946876169098392
1985	19.704695682032792
1986	19.930454755714354
1987	20.31425364758698
1988	19.608200930620544
1989	19.416469711611228
1990	20.869842456491387
1991	23.9139690905534
1992	24.270481941921634
1993	23.30120875530872
1994	22.39583907260686
1995	21.894691980639074
1996	22.159419296063007
1997	21.311830480023826
1998	20.574563806298453
1999	20.25985691323395
2000	19.737324284311285
2001	19.925602234698676
2002	20.627533908920707
2003	21.096679385037135
2004	21.18444424847882
2005	21.411526107100133
2006	21.320786364135873
2007	20.766870509750255
2008	21.564872725400868
2009	24.067522435033315
2010	23.68623865889244
2011	23.361347084313984
2012	24.097056760695793
2013	24.536391266683307
2014	24.50736356737894
2015	24.384417058920928
2016	23.671144457010453
2017	22.78734959191519
2018	22.90137152941378
2019	23.18830307932193
2020	24.251169981263494
2021	24.60744263236843
2022	24.009010523484516
2023	25.178928410625844