Year	% of GDP
1970	35.793728832076916
1971	36.12155845165554
1972	33.10277889508753
1973	36.7272643310141
1974	41.39540760345527
1975	41.026133407817326
1976	43.56130716554745
1977	42.651424640671955
1978	35.28765370847975
1979	36.38759119475819
1980	36.157899201643836
1981	35.07464117716355
1982	35.58103011191492
1983	33.16505692116436
1984	33.040794809728204
1985	34.316200866995494
1986	36.661385226632206
1987	33.64683385994701
1988	32.55717650176785
1989	33.20929221772532
1990	32.65911949014551
1991	31.000130365390138
1992	30.115005294597296
1993	30.557130515395702
1994	30.89055126710519
1995	30.68054629762298
1996	30.76918700790388
1997	32.11768622846829
1998	34.86808692745361
1999	31.120135369134356
2000	28.699742633513836
2001	28.173150325395667
2002	27.0481317269179
2003	26.648441131830342
2004	27.561806430541967
2005	27.02739107988485
2006	27.122606209528556
2007	28.98447317867242
2008	28.567179035404354
2009	27.65416573759526
2010	28.089190285685117
2011	27.937467459142205
2012	27.211487984574344
2013	28.11148305927998
2014	29.409705178355456
2015	31.856667805045262
2016	33.178670971282415
2017	32.37651676761148
2018	31.782168501146767
2019	34.25489520667168
2020	33.14364126156446
2021	28.186411855323318
2022	27.145119556286666
2023	32.4692964351751