Year	% of GDP
1970	13.032552372531683
1971	13.043713789730681
1972	13.35712258878351
1973	14.968405416588858
1974	18.489021879704456
1975	17.071059985202517
1976	17.913336425634824
1977	18.156464054410222
1978	17.670514238444685
1979	19.504679602549782
1980	20.911174970579978
1981	20.221900155215778
1982	19.492048590713054
1983	18.686342617128794
1984	19.129470790001065
1985	18.48848496005565
1986	17.310778488922136
1987	17.776915092473843
1988	18.105062417660474
1989	18.923095079696946
1990	19.287590618985405
1991	18.580222418799742
1992	19.232939133725015
1993	18.0723590732894
1994	18.646372889598712
1995	19.938736055132942
1996	20.585668848404566
1997	21.436305416047105
1998	21.517846087576974
1999	21.56570741363481
2000	23.37503308315144
2001	22.80207507521935
2002	22.627757521498975
2003	23.272007368925944
2004	24.913623785738544
2005	26.32903855583073
2006	28.17105704536126
2007	29.29498304228211
2008	30.815454835264156
2009	26.09795670475651
2010	28.681278113453658
2011	30.80931273363588
2012	30.56562571562324
2013	30.759308225473415
2014	30.98251147346075
2015	29.751669357257605
2016	28.789778573399044
2017	29.885207786205616
2018	30.67500465465877
2019	30.116907896442846
2020	27.83485833286379
2021	30.307923790769976
2022	33.26956905822422
2023	31.262779738118418