Year	% of GDP
1975	36.527635264427744
1976	30.965973700323644
1977	26.92236229346768
1978	29.21825054957855
1979	28.313165026301213
1980	30.6006348528587
1981	31.883261745075135
1982	27.33974972587403
1983	29.550475415990583
1984	25.023626148188367
1985	27.299872621955835
1986	24.909853581662883
1987	27.865637465807946
1988	29.41257201213567
1989	32.73960555035968
1990	31.483998212607283
1991	34.6886808906459
1992	34.43729346551541
1993	34.40720282524611
1994	36.483979116548085
1995	40.671339162232485
1996	44.56079193761033
1997	47.62167458305821
1998	48.21911833222637
1999	51.721140538798416
2000	51.24287477228654
2001	48.52935883936081
2002	48.09423564408521
2003	46.376642051983154
2004	43.31809712267648
2005	43.31345652979276
2006	44.61127612595701
2007	46.26822600794826
2008	46.40558433493877
2009	48.552048373474236
2010	49.00963613529917
2011	50.19524709350141
2012	51.49668609417743
2013	49.75579073832489
2014	49.25450291386211
2015	49.46079954795876
2016	48.05928264092931
2017	46.70702221676152
2018	44.43152167995007
2019	43.59916553819127
2020	47.26936844796727
2021	47.09602082369077
2022	42.15694013864565
2023	40.017129356172475