Year	% of GDP
1970	56.145399679903164
1971	56.172293365619275
1972	56.153005870747755
1973	55.78137288942743
1974	55.85183289668196
1975	57.21606242780199
1976	57.1257193847957
1977	57.31389399100374
1978	56.725584101987394
1979	57.01108552777817
1980	57.58271823374885
1981	58.108823328578104
1982	58.18455508084088
1983	58.01277470973195
1984	57.59382172450843
1985	57.55200686644003
1986	56.994251377432015
1987	57.34430155151144
1988	56.71893140385065
1989	56.71279658649213
1990	56.40178739323277
1991	56.44902098869361
1992	56.88499506570833
1993	56.922901478160504
1994	56.50764898814026
1995	55.88338986843947
1996	56.22116365893927
1997	55.95455388140316
1998	55.78486876000318
1999	55.91516975717232
2000	55.9425187017029
2001	55.824737859207865
2002	55.52112163253477
2003	55.68745654279192
2004	55.429199544487126
2005	55.64484981102412
2006	55.120644100183846
2007	54.510178348883464
2008	54.870113296803055
2009	55.87073063655138
2010	55.626057113235696
2011	55.421499706789234
2012	55.62832361175405
2013	55.277761521658505
2014	54.72953629815862
2015	54.03546646980508
2016	53.86994456874275
2017	53.607847387811816
2018	53.47738357672047
2019	53.023585530130745
2020	51.52437667714366
2021	50.83702886815522
2022	52.1484289962842
2023	52.25669933280166