Year	% of GDP
1970	59.95598109813933
1971	59.77911184729272
1972	59.74659215862902
1973	59.19927105613688
1974	59.56214597664092
1975	60.570735069231205
1976	60.55109457478613
1977	60.58331318780397
1978	60.01507536455637
1979	59.78934791816533
1980	60.60331488316212
1981	59.646084483697415
1982	61.23270433360462
1983	62.051666998451374
1984	61.08323134146934
1985	61.87229490799532
1986	62.450168334988575
1987	62.67757026238866
1988	62.78649908694629
1989	62.62221202072408
1990	63.148087258576815
1991	63.427969000095466
1992	63.821970813892115
1993	64.34854727774461
1994	64.1827225807222
1995	64.28888704355639
1996	64.3432923967165
1997	64.0032275505432
1998	64.33979362601535
1999	64.64947672414866
2000	65.23537683662876
2001	66.07796249910912
2002	66.5076247174896
2003	66.70092136556599
2004	66.39489991428297
2005	66.17914012401094
2006	66.03268004122683
2007	66.16656675446315
2008	66.74259210332009
2009	67.37767843948873
2010	67.08643871957598
2011	67.26967199517618
2012	66.75283419641951
2013	66.32277565510418
2014	66.34878613725023
2015	66.47374462867045
2016	66.98123629278328
2017	67.00197175382591
2018	66.71427609505663
2019	66.29387506855318
2020	65.91254366071945
2021	66.90983846607853
2022	66.9143597136713