Year	% of GDP
1978	16.544387380777696
1979	13.801054018445322
1980	18.204893578724253
1981	15.62101429999655
1982	12.599898804222088
1983	14.037743370282774
1984	15.075344304284185
1985	12.740253772564495
1986	11.69362881385044
1987	13.997664377884897
1988	13.598845405066548
1989	12.693118894343058
1990	11.517170241376023
1991	10.489412344162778
1992	10.308083584731296
1993	9.876595101285154
1994	9.86854965001451
1995	9.87260416812845
1996	10.151617245175443
1997	9.869029278460776
1998	10.353150974130086
1999	9.938464533894672
2000	10.431231912396434
2001	8.954987608073708
2002	8.488360314091814
2003	7.994880747638258
2004	7.979595463109704
2005	7.9467782059116265
2006	7.847299622161271
2007	7.6559805629962465
2008	7.454506974370541
2009	7.811724831556035
2010	7.351197871431722
2011	7.021884370729128
2012	7.520795799195241
2013	7.419556354760822
2014	7.099980137910361
2015	7.296445035247732
2016	7.146338325910475
2017	6.97400609492824
2018	6.5184179667249005
2019	6.493953464129559
2020	7.056539638965481
2021	6.8253975079524105
2022	6.666363590174996