Year	% of GDP
1970	102.45074611120626
1971	102.38881845613315
1972	101.5625331888066
1973	101.58415928082785
1974	102.30271500346547
1975	95.01332692481567
1976	93.79730322957488
1977	94.44519309976903
1978	94.92220595073366
1979	98.34232415963827
1980	102.24160879754602
1981	99.48540001681036
1982	99.44216859905346
1983	101.0116283499051
1984	97.19613709933958
1985	97.45554003812319
1986	99.18004271467964
1987	98.70520077707509
1988	98.73992724243321
1989	98.79717021209193
1990	99.7924221072066
1991	98.59064286218113
1992	97.4182059425422
1993	96.04289876822142
1994	96.02616787076519
1995	96.21275631417377
1996	96.69690921223035
1997	95.48101684012916
1998	96.22625005597449
1999	96.254984517956
2000	95.06141067070958
2001	95.6344449287885
2002	94.66256832720508
2003	94.89405924041799
2004	92.91712406071623
2005	94.55282407892594
2006	93.02678433582084
2007	90.22622883783245
2008	90.51936259934912
2009	93.7566465220461
2010	90.38986725312955
2011	92.65642586036883
2012	90.8991143571715
2013	89.55728117336692
2014	89.53888328208922
2015	89.48057071107444
2016	89.93047251450709
2017	90.92482702430733
2018	89.47213211940807
2019	90.19682468128948
2020	93.59486368090121
2021	87.68105046974742
2022	86.29831800188424
2023	87.56318455126357