Year	% of GDP
1960	19.86619333697433
1961	17.646307181190902
1962	15.052380077191692
1963	17.758857456742653
1964	18.398046398046397
1965	17.130876186272346
1966	16.33337422811107
1967	16.825785071800535
1968	11.799921228830248
1969	13.452831589104134
1970	13.568215892053972
1971	13.241698018188819
1972	12.71023880348058
1973	13.535151363522644
1974	20.367410342421035
1975	18.167941808314175
1976	17.16731796080303
1977	21.586133814053767
1978	19.903170996335646
1979	26.492738457635717
1980	30.51463828605093
1981	30.961436324455
1982	26.333273957962238
1983	22.932330827067666
1984	20.569620253164558
1985	18.230563002680967
1986	13.83219954648526
1987	12.62135922330097
1988	17.37012987012987
1989	17.792207792207794
1990	20.354906054279752
1991	27.46666666666667
1992	28.396836808051763
1993	25.837628865979383
1994	22.57142857142857
1995	22.54901960784314
1996	20.74978204010462
1997	18.841669800676947
1998	16.214335421016006
1999	15.052015604681404
2000	16.201117318435752
2001	17.479788123780317
2002	18.316178411190286
2003	21.79640718562874
2004	28.229960848959408
2005	30.343546889507895
2006	29.949813825481623
2007	30.249731471535984
2008	33.04299274148521
2009	24.956822107081177
2010	21.349245814685894
2011	20.567427612865583
2012	16.396966620887323
2013	17.017845624596863
2014	14.244131455399062
2015	13.183845492859772
2016	10.345463940355797
2017	15.014086818567248
2018	17.984655608417984
2019	16.644031451036454
2020	12.47277573708676
2021	10.56115021536522
2022	15.087025820847943
2023	19.10609134056758