Year	% of GDP
1976	28.451813321549263
1977	28.925788739414664
1979	25.62692612498803
1980	26.256262292522013
1981	23.8411936604534
1982	21.304759247037026
1983	20.458949493883125
1984	19.868988569774267
1985	18.308559769558084
1986	20.34261053690929
1987	18.751186662279615
1988	18.57893506740241
1989	18.481383657036424
1990	18.1945742307772
1991	17.377068594218617
1992	17.07018340896928
1993	18.920210909614433
1994	19.225178330013204
1995	18.37873398894596
1996	18.30117678046764
1997	19.42155246094613
1998	18.664867096734618
1999	16.453801081282403
2000	14.731949524840237
2001	18.652333815169328
2002	21.03417471909109
2003	16.403634363740085
2004	14.79668789345637
2005	13.1628771887565
2006	13.36134041339809
2007	16.001300194821503
2008	5.24089700992898
2009	6.409417862119761
2010	7.811914025242829
2011	10.856809937755367
2012	12.43665603710929
2013	21.722093806627292
2014	21.62749217799058
2015	25.024571419763138
2016	29.17936957226927
2017	25.960147315912952
2018	26.372506457889877
2019	27.217061365388368
2020	22.377455615724173
2021	20.24157449402641
2022	22.59523974711226
2023	25.355981766018786