Year	% of GDP
1970	19.27529823829363
1971	19.288065772233022
1972	19.555510396464058
1973	20.51540024867526
1974	23.602706201596995
1975	21.995934328818866
1976	22.876713261127694
1977	23.18116671677265
1978	22.997726938712688
1979	23.823203080309977
1980	24.16781195103713
1981	25.714831445543663
1982	25.70996755634526
1983	25.979165583726854
1984	27.57692521040596
1985	27.812333742783917
1986	24.97787688320577
1987	24.33620801384513
1988	24.74499860288245
1989	25.80054750938424
1990	25.41168318135233
1991	25.2659466653076
1992	25.010614076214083
1993	25.19559234914897
1994	26.614519479375705
1995	28.284281346631225
1996	28.627895229657383
1997	30.924053674801332
1998	31.542286791444646
1999	31.917449437039835
2000	35.690888863065304
2001	35.69977769202376
2002	35.10077629352732
2003	34.34607069354222
2004	35.98709924289015
2005	37.44459656101654
2006	39.62942365025355
2007	40.71847918801424
2008	41.101289856000115
2009	36.27469616716309
2010	40.31839533734015
2011	43.192958767896506
2012	44.78102531082605
2013	44.96687135467724
2014	45.66362889912028
2015	47.04876919834831
2016	46.6442844119344
2017	48.28767054618308
2018	49.11763516264291
2019	49.40165014320346
2020	46.46251246230139
2021	50.51674286152995
2022	56.288255587864874
2023	52.69060699298602