Year	% of GDP
1977	17.716846544885765
1978	16.04286615930847
1979	17.339263020055025
1980	16.478681712943814
1981	17.133148334401305
1982	14.273369156883478
1983	13.434976241057923
1984	12.997075616688585
1985	11.065974098977339
1986	11.087490037916929
1987	12.299478046660173
1988	11.688476851313169
1989	10.269736360167512
1990	8.88479480497909
1991	8.918703280835096
1992	7.784764205670375
1993	7.432770798174139
1994	7.1165715180156255
1995	7.176464373938293
1996	6.000852562163299
1997	5.586352289410307
1998	5.225801591225873
1999	5.372240727147382
2000	5.164160493997735
2001	5.365900765820194
2002	6.290519557173416
2003	5.869748871016551
2004	5.014335256199199
2005	2.9640788072417465
2006	3.8905549443681653
2007	3.5570823283233715
2008	3.767331964118948
2009	4.626424528102556
2010	4.513051581849799
2011	4.447361786935696
2012	4.832197362572233
2013	4.835455612354784
2014	6.10189188310633
2015	7.428526850723648
2016	6.2063263362440395
2017	5.371543257604422
2018	5.205439438149092
2019	4.679512026883082
2020	4.90307786781958
2021	5.337845861536635
2022	4.118123858261049
2023	3.268532648197579