Year	% of GDP
1965	17.45021940907626
1966	15.626936285969201
1967	15.67330278185142
1968	15.443521674581495
1969	15.253885787809649
1970	15.207520759898882
1971	16.42575341479315
1972	16.31438601413013
1973	15.40159908819951
1974	15.331668506014164
1975	16.916994783469672
1976	17.833650169678283
1977	19.37678703536516
1978	20.10674101116895
1979	20.221000591013443
1980	19.235376154100877
1981	16.894931775535376
1982	17.96177458608644
1983	19.421244436846496
1984	19.832180551221786
1985	20.19541287007311
1986	22.531169057080398
1987	23.353484597687483
1988	23.44932970843321
1989	24.728224365854654
1990	25.6898193650741
1991	23.711009785146196
1992	24.31515179866045
1993	22.773351912859592
1994	22.668507510170187
1995	21.990121817609186
1996	21.035135227107858
1997	21.594139036718587
1998	21.563954232505807
1999	25.602285807641767
2000	24.35070178632457
2001	26.010367318471566
2002	24.734985474242595
2003	24.98647438540466
2004	26.336370414914683
2005	27.39191682200698
2006	27.508411136265842
2007	29.755580117714135
2008	28.57260658585855
2009	29.04849889096317
2010	28.45825030939085
2011	28.24009440368669
2012	27.24390591539788
2013	25.99333958554607
2014	25.585237040776555
2015	25.722711932827956
2016	26.497665409017134
2017	27.204240302389575
2018	27.952799328958665
2019	27.312547942568166
2020	25.826892844669498
2021	27.460146365870337
2022	28.403106004559657
2023	29.516465814815767