Year	% of GDP
1967	12.99478819063349
1968	13.222318091889967
1969	12.969713020026669
1970	13.093144045691716
1971	17.154233069149207
1972	15.873241032277532
1973	16.138292324010163
1974	16.999333615670754
1975	17.150382979258136
1976	16.819398576889977
1977	16.505265723866867
1978	16.44660960742444
1979	16.682676538529535
1980	18.446161556284753
1981	19.60603135091226
1982	19.955213157644607
1983	18.51449504197915
1984	19.570580186810606
1985	20.454462221272205
1986	18.420516043381244
1987	17.65853325154712
1988	18.329457525365406
1989	19.427915055537852
1990	18.860606630738637
1991	20.723267917320243
1992	21.43283030670099
1993	21.742856990933074
1994	22.13756228348975
1995	20.13351033284671
1996	20.620410943898328
1997	22.618976399672892
1998	22.096294155316222
1999	22.51885567373694
2000	24.184702506866394
2001	24.208680336164974
2002	24.14857316059255
2003	22.382526982669894
2004	27.96134849333961
2005	28.287644773800302
2006	28.017105263936248
2007	29.143538065184778
2008	29.491423212980493
2009	30.40854815645589
2010	30.582750016361814
2011	31.864843651533103
2012	32.99546225044727
2013	33.531234702964355
2014	35.63442682533445
2015	46.012292747019686
2016	39.28356509322465
2017	41.01117432914895
2018	42.733460924032876
2019	42.05067325610669
2020	38.8792709852182
2021	36.34890502113631
2022	39.33648793317998
2023	38.863008532063034