Year	% of GDP
1966	9.616612278392145
1967	10.273090799414906
1968	10.911600147630603
1969	11.52659561317859
1972	14.807474931836317
1974	15.729760013481126
1975	13.775563954165657
1976	16.37761519788879
1977	17.009278013921655
1978	17.45242956708094
1979	18.400496020971254
1980	18.46939485810115
1981	19.13721173082172
1982	19.287085857911034
1983	19.555750263949587
1984	20.370954639099658
1985	20.02729458214375
1986	20.669875845347207
1987	20.96052355468424
1988	20.17380493315138
1989	21.19579224177128
1990	23.161787456205932
1991	21.98405730651476
1992	23.93414010156135
1993	25.44931974590622
1994	26.19863665548542
1995	32.364789409434444
1996	32.24252862620678
1997	31.985025449006315
1998	28.906523176290545
1999	30.170826271571404
2000	28.621094271814044
2001	25.73966950665211
2002	25.813548798535052
2003	26.3556421080341
2004	26.39323171937769
2005	25.918483448873904
2006	26.894065748462303
2007	27.14486651962707
2008	28.85108534346944
2009	32.989094688464476
2010	33.172980145892645
2011	33.17257214449001
2012	34.509358576167614
2013	35.435141170298444
2014	37.66193161893639
2015	41.26087488568569
2016	41.203477847544676
2017	41.72517719673035
2018	42.48745270543458
2019	45.41546309741679
2020	50.72411974719374
2021	49.54070310156644
2022	48.027175075131815