Year	% of GDP
1970	51.13589889291781
1971	51.56925376335375
1972	51.53096874135144
1973	51.921232013978916
1974	51.310651367678794
1975	52.582777829317074
1976	52.41036401999965
1977	53.29382846867535
1978	53.0402559927922
1979	54.175428695004335
1980	54.71076828799926
1981	56.2812533362594
1982	57.08373078665626
1983	57.604126247489695
1984	56.50604167269907
1985	57.27060060943662
1986	56.41432785435095
1987	56.086566126388995
1988	54.791177998339315
1989	54.19578497072847
1990	54.17739614414896
1991	54.77539841300073
1992	54.13377304031498
1993	53.657942792573564
1994	53.31171004005837
1995	53.06008719691423
1996	53.47886083669992
1997	52.66403839331731
1998	52.916855455030834
1999	52.072819837264696
2000	52.3121863010792
2001	52.405490156615706
2002	51.53627058006798
2003	51.193455765678685
2004	50.24157763113433
2005	50.18833199586115
2006	50.04817754185357
2007	49.645668500772224
2008	50.724292814841284
2009	51.37283503928736
2010	51.438081335550656
2011	51.542632108388005
2012	51.94377052665542
2013	52.461184076562816
2014	51.811114201794375
2015	51.33894438559602
2016	51.29154611887456
2017	51.47213763124646
2018	51.7780862461276
2019	51.322125478559414
2020	49.39307570843662
2021	48.77916282526593
2022	50.67927768656747
2023	51.35983666122854