Year	% of GDP
1970	13.266450916936353
1971	13.71026124875174
1972	15.206651940351678
1973	14.722291366529646
1974	16.372596212575928
1975	16.75478769330091
1976	15.967707304787055
1977	16.084130870648
1978	17.05374538974057
1979	17.60801780143386
1980	16.978064744721546
1981	17.282670848413947
1982	18.176135022177718
1983	18.254445883922465
1984	16.772143637434418
1985	17.676865586989948
1986	18.097906320053138
1987	18.90705129344507
1988	19.96587911989452
1989	19.324674018803982
1990	19.18712997039519
1991	19.80861326367967
1992	20.407602243171468
1993	20.888355669959008
1994	20.771860192737652
1995	21.244883983106707
1996	21.15807545561152
1997	20.79027916779916
1998	21.26086640677844
1999	22.090623232971968
2000	22.717068221229056
2001	22.95211341659678
2002	24.518351051640096
2003	25.254751189230184
2004	24.296466423670125
2005	24.455800340361016
2006	24.306582388441846
2007	23.804695943868815
2008	24.2616429816329
2009	25.30379921429545
2010	24.821038612943237
2011	24.875588344843656
2012	24.756166125995325
2013	24.350106538438926
2014	24.123906016493393
2015	23.427354629134648
2016	23.00974929480629
2017	23.677264185669802
2018	24.147208188694123
2019	24.587376305839772
2020	28.0705864394643
2021	27.36768324420062
2022	25.61604487112325
2023	25.669617540105506