Year	% of GDP
1972	14.550184888524868
1973	14.785101389049213
1974	15.064607135620431
1975	16.57112472411809
1976	15.99637415519149
1977	16.7245554386909
1978	15.93464722370674
1979	16.039770684729344
1980	16.992918328849306
1981	17.880205587770163
1982	18.916341977328642
1983	18.760838719848653
1984	17.66338209075398
1985	15.662167056589368
1986	12.73576946496563
1987	13.078079891107478
1988	14.072012621579082
1989	15.687873622743991
1990	14.546269592565428
1991	15.181531598058637
1992	16.103353501287092
1993	16.29033394571863
1994	16.613152278788935
1995	15.768503647259873
1996	15.897367157372516
1997	15.312341085021028
1998	14.031025635842925
1999	14.531717406540059
2000	14.85578908474429
2001	14.585519151496468
2002	12.68873933979931
2003	12.4460741638593
2004	11.604511579824413
2005	11.57702740183243
2006	11.8310221766032
2007	12.820428195921052
2008	13.754391446936138
2009	12.954926530084688
2010	12.78582396910393
2011	13.105721951265325
2012	13.580668735704185
2013	13.2712500808714
2014	13.556557134402764
2015	13.139774529861203
2016	13.308668223847897
2017	13.990084774153589
2018	13.013148305670668
2019	13.151501266264114
2020	12.731544682126936
2021	12.812897934185555
2022	12.03319295775478