Year	% of GDP
1975	8.273986353436943
1976	7.392784894714817
1977	6.956877222004298
1978	7.596321771548878
1979	8.718215730891055
1980	9.68656370491151
1981	9.846377196479827
1982	9.222891879744884
1983	9.376224808480083
1984	9.267167045071025
1985	9.912086490624285
1986	9.638179551911998
1987	10.836352304194246
1988	13.324484758286944
1989	13.788435222296828
1990	14.91414153188168
1991	15.587083099245092
1992	17.6363980850562
1993	18.254340843629713
1994	18.431353048711088
1995	19.89436248059356
1996	19.992070178568333
1997	22.051982965610026
1998	22.127835727351624
1999	22.276879249506095
2000	23.20436052466951
2001	22.972168182538255
2002	23.90977549593173
2003	22.30562435821557
2004	24.35991952611969
2005	24.679919072819946
2006	25.805289374346895
2007	25.93157002188612
2008	27.16220396253069
2009	22.94335743437566
2010	22.184707412987915
2011	23.634727232448643
2012	23.189744879330956
2013	24.315648189084342
2014	23.859108093106045
2015	25.068876065252226
2016	25.95708527048132
2017	25.776426396958186
2018	26.129578460665382
2019	25.374640113890468
2020	15.278547785841523
2021	16.45649518217463
2022	20.530809392645804
2023	23.582008565349497