Year	% of GDP
1970	32.58975318960346
1971	35.65147203210842
1972	35.71886319053963
1973	36.66840533154566
1974	34.71422878369136
1975	34.766336105876455
1976	29.183911126817907
1977	26.738827029173866
1978	29.285781050506465
1979	30.2098222169679
1980	26.341512114355016
1981	24.826810516974977
1982	27.053313589123597
1983	27.539792448725915
1984	25.735819727912144
1985	21.83875868089495
1986	21.437824045946556
1987	21.84110461347109
1988	20.74522781387733
1989	20.03389891880671
1990	22.413716784110633
1991	29.026977754560463
1992	28.765881381381437
1993	29.4807057926798
1994	28.78568277513217
1995	28.91381825546549
1996	29.18065935098359
1997	27.978094132790943
1998	26.28113820844391
1999	26.571203085390437
2000	25.619868271702355
2001	25.345132996110042
2002	24.03343921587548
2003	22.774778464299466
2004	22.657480884118893
2005	23.466719757290047
2006	23.488028894983824
2007	24.182229430155726
2008	22.998804793024064
2009	20.86735167349603
2010	21.346398035175774
2011	23.31462018100596
2012	23.791865331885372
2013	22.12491211417495
2014	22.648042398301683
2015	21.826667296125063
2016	22.788318267309926
2017	22.899100337709335
2018	23.841352073302957
2019	23.547387714489002
2020	24.061345928760453
2021	25.320831116885874
2022	26.947663416892393
2023	25.687828382946936