Year	% of GDP
1973	34.92824004518015
1974	35.84935781035081
1975	40.7527667795199
1976	40.98830258775001
1977	42.35017885856571
1978	43.37544745138662
1979	44.716838332005345
1980	45.54909993557663
1981	46.78950190510575
1982	49.461497220620274
1983	50.23323338930248
1984	49.27251707029331
1985	48.571073875262805
1986	48.759557036292364
1987	50.00623349689912
1988	47.895554639143015
1989	46.225461881585076
1990	45.39242635519727
1991	45.7305790428648
1992	46.20924405041987
1993	46.484849105596915
1994	45.497771976729304
1995	48.056878078089014
1996	41.46216902430177
1997	40.61255236474586
1998	38.983502200129344
1999	37.77341766418172
2000	36.67354709108487
2001	37.204621057896034
2002	37.38558517930227
2003	38.36157641231645
2004	37.58365042717926
2005	36.894948655159084
2006	37.898984853202315
2007	37.27037808679361
2008	37.67919554757586
2009	41.67885641490169
2010	41.86896792331509
2011	41.43065599153698
2012	41.57000517637978
2013	41.73345062478898
2014	41.29489546727024
2015	40.18141818645581
2016	39.055280184431986
2017	37.80796752945894
2018	37.658384443149565
2019	37.43313797959548
2020	42.94477295268226
2021	41.8008768796226
2022	39.49834593745338