Year	% of GDP
1970	23.870060264615883
1971	22.568093958933797
1972	23.65313291378693
1973	23.604246398369686
1974	25.680904986682663
1975	22.13360978774987
1976	23.547032395141425
1977	26.851296936141928
1978	27.860322086034344
1979	29.57857838060648
1980	30.82271147161066
1981	31.28694144534636
1982	28.874144335677403
1983	28.70455687719886
1984	29.485596707818928
1985	27.988668555240793
1986	25.647201441947264
1987	24.99852324413728
1988	23.905478148664677
1989	23.023366825394977
1990	22.1462417132994
1991	21.269519787339323
1992	25.54433724139558
1993	31.380967937648762
1994	34.03563675632789
1995	35.76494941602654
1996	36.31946553294868
1997	37.77739673486332
1998	37.438783471952455
1999	37.60439976047149
2000	42.031046158807406
2001	39.764084409657876
2002	39.13500262651024
2003	37.32083901706107
2004	38.61537686289825
2005	40.27336705386582
2006	43.07420024638947
2007	43.82590660280534
2008	44.90000772141147
2009	36.08092568240466
2010	38.414397559303296
2011	38.900392933261955
2012	38.80827907300646
2013	38.017629122801864
2014	36.48143762355181
2015	35.40695886652317
2016	34.81045246830147
2017	37.54954684247971
2018	38.46878721162331
2019	39.8806794019795
2020	35.787563330224586
2021	39.47754763348546
2022	45.41647521172115
2023	40.96461053579469