Year	% of GDP
1975	23.71838777295632
1976	25.930669287285006
1978	26.1582644619491
1979	25.976625589616052
1980	27.36803861096902
1981	29.581279996160546
1982	29.07991424170268
1983	30.804085021048742
1984	29.512086315290603
1985	33.576083100952175
1986	33.66175960330344
1987	30.131594888980324
1988	29.7935425928162
1989	31.153775519642956
1990	32.32229973658536
1991	34.73090272958797
1992	35.87915446197157
1993	37.24130700640392
1994	34.970519385059966
1995	36.777981249319815
1996	36.79714844448145
1997	35.839123369897045
1998	37.247953881166836
1999	37.09034043833488
2000	37.252827748467084
2001	38.08935707748692
2002	38.5425576504857
2003	39.820809859483255
2004	40.40984460209851
2005	41.399983314065715
2006	40.114540997716055
2007	39.26316597887227
2008	40.30294593806447
2009	43.67792169897967
2010	43.955900330458455
2011	44.27092625426818
2012	44.19802044817948
2013	45.3738022572742
2014	47.43542800251513
2015	43.75637011644763
2016	41.129929613151894
2017	41.416907135345284
2018	39.104185760492854
2019	38.51762955894686
2020	44.447351458348365
2021	42.445926364370735
2022	39.49748125377645