Year	% of GDP
1960	106.56330341044816
1961	104.7245799838474
1962	99.65256365678565
1963	101.274971846775
1964	102.29880852312765
1965	99.48816319439175
1966	105.15516421910102
1967	102.63737529016308
1968	102.49194742673471
1969	104.08726492533104