Year	% of GDP
1976	13.340786141938748
1977	14.468915277321448
1978	14.71084788198084
1979	13.031350541214934
1980	13.886844340580149
1981	13.743837521062705
1982	13.666735622556732
1983	13.189182489468893
1984	12.608785262547112
1985	11.3705544806275
1986	10.358000508264995
1987	11.548742103513698
1988	12.535608353169653
1989	12.092993763409748
1990	13.37719006294303
1991	13.434773132966146
1992	13.13519068356542
1993	13.832047740744976
1994	14.41617626234307
1995	13.986506023549422
1996	14.156896321004039
1997	13.893165086026462
1998	13.564954305748579
1999	14.041316751319927
2000	14.062443050951517
2001	13.7409327498411
2002	13.972017310983142
2003	13.89244286759961
2004	14.013373918369162
2005	14.329721767328996
2006	14.123928747700454
2007	12.435592509727245
2008	12.464556347492032
2009	13.922250099398129
2010	13.818487646002525
2011	13.463603178011596
2012	13.35770753242605
2013	14.349608252011734
2014	14.344662558604822
2015	14.189805576144593
2016	14.882713015504223
2017	14.450758256654703
2018	14.562431131473641
2019	14.74962312637178
2020	17.56840449658479
2021	17.232204207540825
2022	15.955349671039961
2023	14.229313905707683