Year	% of GDP
1972	14.9962329717218
1973	16.61982914943715
1974	11.39663935605522
1975	8.473727402324842
1976	13.373379890311268
1977	16.98243337383298
1978	15.51751342898971
1979	16.49162086171504
1980	18.51356770675661
1981	17.23482833655706
1982	17.451715694857093
1983	16.406337612424743
1984	19.851127116977892
1985	15.89430269715955
1986	15.7343379958697
1987	15.565046419529525
1988	16.298578178507473
1989	17.215791232318026
1990	16.738220646212515
1991	16.477437275936094
1992	18.386019922236297
1993	19.715665420270977
1994	22.3165497327731
1995	26.8715537948486
1996	24.292351950736418
1997	25.07031444171741
1998	25.23979431533703
1999	26.9706383826304
2000	28.615440996277886
2001	27.963769792371036
2002	26.93695279756549
2003	28.963281486402455
2004	31.241675319728458
2005	33.372674769440685
2006	38.771104912363406
2007	39.0005758656304
2008	42.81021977334195
2009	36.02434048785121
2010	40.78488779900345
2011	47.161330444673396
2012	44.48253521440279
2013	44.13297344172352
2014	41.370467922295674
2015	38.13850560088106
2016	30.037193245213984
2017	30.193123334027945
2018	31.038755937616003
2019	28.024524144252123
2020	23.105280703917234
2021	29.949433476373827
2022	31.062629122284473
2023	28.039940828801267