Year	X49	X50
1960	0.28	0.02
1961	0.12	0.55000001
1962	-0.039999999	-0.039999999
1963	0.60000002	0.60000002
1964	-0.77999997	-0.77999997
1965	-0.80000001	-0.80000001
1966	0.28999999	0.28999999
1967	-0.23	-0.23
1968	-0.94999999	-0.94999999
1969	0.91000003	0.91000003
1970	0.31999999	0.31999999
1971	0.11	0.11
1972	-0.02	-0.02
1973	-0.0099999998	-0.0099999998
1974	-0.079999998	-0.079999998
1975	-0.68000001	-0.68000001
1976	-0.090000004	-0.090000004
1977	0.15000001	0.15000001
1978	-0.14	-0.14
1979	0.02	0.02
1980	-0.23999999	-0.23999999
1981	-0.0099999998	-0.0099999998
1982	0.059999999	0.059999999