Year	% of GDP
1960	33.54053358993637
1961	31.22998102953969
1962	30.611255448403117
1963	31.57129526304441
1964	33.520047820380505
1965	32.11715285864318
1966	30.507105921168645
1967	29.926995524961
1968	27.446372657917106
1969	28.01521538260576
1970	26.77913371562949
1971	30.046734385031797
1972	28.856350386721843
1973	32.046655912412895
1974	37.68878976751954
1975	34.44602223213929
1976	37.724223038776074
1977	41.74310554518706
1978	40.10041976451572
1979	41.329182037327065
1980	45.59211278513087
1981	29.800089138203024
1982	26.56744968412518
1983	28.12810197347856
1984	29.06211716443247
1985	28.032174113224166
1986	27.018727781026744
1987	28.551837987185163
1988	28.98158976351234
1989	31.59716433923756
1990	30.883032242915597
1991	29.31060360202883
1992	35.165374895386954
1993	33.673989672846915
1994	34.15288315543428
1995	33.64427572045889
1996	32.19234720038171
1997	31.228404061259123
1998	28.29696688276548
1999	39.325333115879346
2000	37.64538549078702
2001	38.711947858019975
2002	36.85960612771126
2003	38.42560442022312
2004	41.92827770120966
2005	44.44552142935494
2006	43.65574233113668
2007	43.81466118913445
2008	46.02938193317396
2009	39.09160217753316
2010	41.50581832422604
2011	45.7429321402853
2012	43.02476972210758
2013	40.0863606537333
2014	38.77238503476372
2015	34.334056298014
2016	32.277157477607055
2017	34.76345059966647
2018	36.62345296417078
2019	35.47641528135551
2020	32.107571056477234
2021	37.89970308591294
2022	39.5945148021151
2023	37.287272676138116