Year	% of GDP
1975	0.4132569130631903
1976	0.4188345085768714
1977	0.48822288548743537
1978	0.5104678030084185
1979	0.5162543386816302
1980	0.5368664538468029
1981	0.5562779427740638
1982	0.5618863098560269
1983	0.527434644112863
1984	0.5221405353035268
1985	0.5088988887318839
1986	0.4772183180947693
1987	0.4589566220685227
1988	0.4714416827115276
1989	0.4852019153434181
1990	0.4605846647106315
1991	0.4468827770102738
1992	0.4261633058259927
1993	0.44752416121147065
1994	0.41264463576860116
1995	0.38368464154282667
1996	0.3778724331693164
1997	0.4609471349298284
1998	0.45876186114755635
1999	0.3775008240751186
2000	0.4084360400232525
2001	0.42703748105457084
2002	0.4398629280129676
2003	0.4520882887564334
2004	0.47122835760083276
2005	0.5054683153091586
2006	0.533819347587751
2007	0.5581557669514435
2008	0.5875366365042908
2009	0.6136897513437118
2010	0.6139374820769192
2011	0.6284559384568376
2012	0.6597953520060927
2013	0.7236295527328895
2014	0.7335794467446207
2015	0.7794025824868887
2016	0.7670823658671251
2017	0.7755720044286009
2018	0.7607038895477284
2019	0.8067455643829036
2020	0.7937672339974735
2021	0.7737058938196374
2022	0.7935715566629234
2023	0.7674859946373842