Year	% of GDP
1970	42.58367439260799
1971	39.02038660956055
1972	38.77245779403204
1973	41.54680655793615
1974	40.725039230791104
1975	35.77012393650966
1976	34.75154415713974
1977	33.6696430548379
1978	33.73236053383234
1979	35.462416590863796
1980	35.188317213763575
1981	34.01066726289337
1982	32.854029444273124
1983	31.460512231314112
1984	31.322803096755464
1985	31.226312466711498
1986	31.159039185660614
1987	32.058493381519696
1988	34.04142978363914
1989	34.86038619179145
1990	35.451579693779536
1991	35.21166971803486
1992	33.53724959397907
1993	31.768344678609107
1994	30.65250830811556
1995	30.933631894113173
1996	32.02694888230515
1997	31.11037274899208
1998	29.590823739313553
1999	28.200433313847277
2000	28.417439318871978
2001	27.75495486819527
2002	25.89885919104055
2003	25.660965179974525
2004	25.63820726409796
2005	26.052325978807005
2006	26.077554392976293
2007	25.768740159363833
2008	25.869579962100993
2009	22.603176476102885
2010	22.59030412797959
2011	23.540568689567916
2012	24.004929719724093
2013	24.417624040545657
2014	25.036361989240785
2015	25.165347879671906
2016	24.8355973184149
2017	25.214826975824167
2018	25.641714309017782
2019	25.789696130635935
2020	25.246318970330574
2021	25.71904734845126
2022	26.587638850897992