Year	% of GDP
1970	57.504907566909104
1971	57.498847031933195
1972	57.31512253468971
1973	56.56098806648989
1974	56.84716446308179
1975	58.119754660888866
1976	57.99022482005719
1977	57.94730810202356
1978	57.270948909705574
1979	57.50610068276541
1980	58.0599189024266
1981	57.84163658496575
1982	58.793175030509204
1983	59.21687994386836
1984	58.54585494041341
1985	58.85186109891233
1986	58.503532465937504
1987	58.43581588045525
1988	57.939162853712666
1989	57.9035821640373
1990	57.95497928624527
1991	57.9858594851271
1992	58.40877205004236
1993	58.78967242958887
1994	58.7876733575054
1995	58.26634368178226
1996	58.59499068298828
1997	58.83983441873234
1998	59.243903510958894
1999	59.64992050325081
2000	59.889381778074814
2001	60.59477161938902
2002	60.76590088916335
2003	60.57211847474905
2004	60.10936303916251
2005	60.10600556200504
2006	59.86157301548221
2007	59.487300101641
2008	59.684413912660595
2009	60.668082322481794
2010	60.29849999492314
2011	60.18073578566021
2012	60.308757465413066
2013	60.21371222323707
2014	60.05913590859969
2015	60.211691261081626
2016	60.27271608330891
2017	60.082042552908
2018	59.92121389087822
2019	59.76204238542005
2020	58.76447920943397
2021	58.82594178133619
2022	59.81464190591995