Year	% of GDP
1960	8.0224755713074
1961	8.659017155045053
1962	9.358165974083851
1963	9.713777982236973
1964	9.544509847851112
1965	10.30051700441701
1966	11.315778206194247
1967	11.058574886193114
1968	11.71482208699534
1969	12.184347828148761
1970	12.981441034957392
1971	13.992551294036794
1972	14.522858464719372
1973	13.817176804966234
1974	12.324332307834768
1975	13.186193770178715
1976	16.773971439098695
1977	17.429265998045565
1978	18.528976557218552
1979	19.811585875960017
1980	19.341911388156916
1981	19.929535410937753
1982	21.31357309765589
1983	21.923565191958975
1984	23.17977055565181
1985	23.79479686267084
1986	25.013241849594998
1987	24.495835761431312
1988	24.396446895244278
1989	25.32578509562143
1990	23.912640608177753
1991	22.42617348461904
1992	23.179231023250683
1993	22.665995912924593
1994	22.670520827152576
1995	22.812462413588435
1996	23.30727992247716
1997	23.50932299869159
1998	23.72131287640084
1999	25.12762244477817
2000	25.965304524903946
2001	26.42653397886859
2002	29.335904564246896
2003	29.215580229671325
2004	33.29366509813862
2005	36.57298377873952
2006	39.569651716595764
2007	41.63537931886395
2008	44.54973602504901
2009	43.577383628173244
2010	46.034960991401455
2011	46.35625054540145
2012	46.39996363958728
2013	46.50943911244408
2014	46.43814111983621
2015	46.41260415383034
2016	44.15806552505167
2017	44.511794567010185
2018	45.85528938791721
2019	46.41468886102815
2020	49.35161044416173
2021	46.40361095084166