Year	% of GDP
1970	71.88334758014742
1971	73.16184918877657
1972	74.14479329221723
1973	74.35538080177109
1974	75.52603763352602
1975	79.10085844428943
1976	78.47381455592662
1977	78.72721424884665
1978	78.2610354367781
1979	78.4771342091603
1980	79.71472591922357
1981	80.82046989019223
1982	80.41778332482275
1983	80.27388341724787
1984	79.87035353258356
1985	79.17480721895456
1986	77.58626188911454
1987	78.2211010316264
1988	77.48321077230212
1989	76.61434071750993
1990	75.44203287005249
1991	74.71522260058015
1992	75.24141334618051
1993	76.01134280280316
1994	75.50599874286027
1995	75.26641366824835
1996	76.02327493780511
1997	75.54659256048747
1998	74.75069747123241
1999	75.44394701575155
2000	75.34377385507494
2001	75.41297283364172
2002	74.97334085491238
2003	75.78910005109492
2004	74.96039814012694
2005	75.31444603222465
2006	74.01319871870126
2007	71.84897281510672
2008	72.48023750338702
2009	76.43243530561428
2010	74.67189206052099
2011	73.45661503734834
2012	74.18382623456003
2013	74.18777455670764
2014	73.01127610224668
2015	72.6618046514087
2016	72.65569074309192
2017	71.94884854124071
2018	71.98255805315782
2019	72.19348264735429
2020	72.22411883433763
2021	71.38547872119864
2022	73.00378403893923
2023	72.26708014248415