Year	% of GDP
1974	16.099565006597814
1975	8.959074733096086
1976	11.442875053519105
1977	15.339919596882886
1978	13.900417792500882
1979	13.391280700117372
1980	8.290763963304112
1981	5.667992918484365
1982	2.7310560486086453
1983	2.6298519910710474
1984	4.384382385696516
1985	6.796522001674473
1986	5.7191205889582
1987	9.250646289055304
1988	12.959310780333725
1989	8.822411329532022
1990	13.735129018947859
1991	13.819833903363213
1992	12.616999997785133
1993	20.055045689977003
1994	23.762892640732968
1995	21.923034644032665
1996	20.43615879204838
1997	23.525166206449935
1998	23.9126823524933
1999	26.690822017558034
2000	20.222381797016432
2001	18.788447507204655
2002	18.693798649187226
2003	18.809069971091162
2004	20.184169059843946
2005	23.884600403028795
2006	25.080643173071966
2007	23.986792130470622
2008	21.454802676501885
2009	18.859223710765022
2010	17.54721868446826
2011	18.698708734665797
2012	16.00902135663195
2013	12.697410026232758
2014	14.711596300723983
2015	19.675332379337327
2016	20.42579523318488
2017	23.15288535923066
2018	19.580501745160845
2019	19.649038505532918
2020	21.93966301695586
2021	18.2740133869675
2022	19.049944319985737
2023	18.981543222967126