Year	% of GDP
1960	17.388463210411587
1961	15.863096081158046
1962	13.67864427263099
1963	12.459907734032608
1964	16.33036736325782
1965	16.475760649062654
1966	17.612586515141587
1967	19.65890017865372
1968	20.512754201756774
1969	21.050058527904685
1970	21.201469577314068
1971	21.32280651040885
1972	21.50599211087119
1973	20.657810895168705
1974	24.033757202029683
1975	35.37988749710186
1976	28.230076186608038
1977	29.092774853589248
1978	22.220028368639746
1979	16.059490859179647
1980	28.746648104875465
1981	27.943382733116916
1982	20.973246778633655
1983	24.196289350819647
1984	16.62069870478771
1985	14.288795759093054
1986	10.41323818411008
1987	8.727449926650163
1988	14.298818432489982
1989	18.107756074705257
1990	23.801825898321002
1991	30.369851362252565
1992	27.233336582925865
1993	20.6307526783539
1994	13.322943984058092
1995	13.468004211443214
1996	15.026168915103591
1997	15.371627246533128
1998	16.544838733960894
1999	15.593390938549462
2000	19.790189896096614
2001	21.232246123348016
2002	23.758784398294615
2003	26.051632944429347
2004	26.04692907089945
2005	24.10967607656851
2006	23.29832346357719
2007	21.043694516943642
2008	21.65227532214445
2009	20.98809108650993
2010	19.370990454326684
2011	16.28610166539043
2012	21.614046481486586
2013	21.90381117756834
2014	22.520747752151838
2015	20.701754154314354
2016	19.226138921702322
2017	22.009182502898913
2018	27.448709615144722
2019	27.27046708257541
2020	24.385555661292823
2021	21.534602061909844
2022	24.78162025621586
2023	26.905056393384164