Year	% of GDP
1970	55.30864197530864
1971	55.09587257160072
1972	55.73442227313269
1973	56.004094575457174
1974	56.05303932064982
1975	55.084405495522226
1976	55.17160499492655
1977	55.16997936352775
1978	54.747075489878505
1979	52.85672341833075
1980	51.613835659908446
1981	51.196532726231666
1982	51.42669881901936
1983	50.84319826000707
1984	49.42604533985145
1985	49.446481342527235
1986	53.91760266157082
1987	54.97232521728721
1988	57.010709488558675
1989	56.480336872526934
1990	56.358445098491586
1991	57.403551760755455
1992	57.70569910207074
1993	57.65529850912028
1994	56.70086777034512
1995	55.33568398298063
1996	53.5636671875237
1997	53.215956682496014
1998	56.53661693089956
1999	55.12620581888298
2000	49.6311787173024
2001	51.243690591992895
2002	53.17480156890826
2003	53.574329087892025
2004	52.077122211391504
2005	49.524921170714414
2006	47.84636951985081
2007	49.967078698434946
2008	48.17318711660536
2009	53.193163783266215
2010	52.28635220359944
2011	50.57725657836907
2012	51.09708683837722
2013	52.05752774375594
2014	53.43474680053236
2015	55.98337221817382
2016	57.9316984565321
2017	56.286127754691925
2018	54.57404711370999
2019	57.31028928224209
2020	59.60411084549663
2021	50.567250032435766
2022	41.74494892426496
2023	49.99343880510989