P8-9 (similar to) Question Help Historical returns. Calculate the arithmetic average return of U.S. Treasury bills, long-term government bonds, and large-company stocks for 1986 to 1995. Which had the highest return? Which had the lowest return? On the left side, click on the Spreadsheet Learning Aid to see Table 8.1-Year-by-Year Returns, 1950-1999. What is the average return of U.S. Treasury bills for 1986 to 1995? Table 8.1 Year-by-Year Returns, 1950-1999 Year 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Three-Month Long-Term U.S.TreasuryGovernment Bills Bonds 1.20% 0.96% 1.49% -1.95% 1.66% 1.93%. 1.82% 3.83% 0.86% 4.88% 1.57% -134% 2.46% 5.12% 3.14% 9.46% 154%. -3.71% 2.95% -3.55% 2.66% 13.78% 2.13% 0.19% 2.72% 6.81% 3.12% -0.49% 3.54% 4.51% 3.94% -0.27% 4.77% 3.70% 4.24% -7.417 5.24% -1.20% 6.59% -6.52% 6.50% 12.69% 4.34% 17.47% 3.81% 5.55% 6.91% 1.40% 7.93% 5.53% 5.80% 8.50% 5.06% 11.07% 5.10% 0.90% 7.15% -4.16% 10.45% 9.02% 11.57% 13.17% 14.95% 3.61% 10.71% 6.52% 8.85% -0.53% 10.02% 15.29% 7.83% 32.68% 6.18% 23.96% 5.50% -2.65% 6.44% 8.40% 8.32% 19.49% 7.86% 7.13% 5.65% 18.39% 3.54% 7.79% 2.97% 15.48% 3.91% -7.18% 5.58% 3167% 5.50% -0.81% 5.32% 15.08% 5.11% 13.52% 4.80% -8.74% Large Company Stocks 32.68% 23.47% 18.91% -174% 52.55% 31.44% 6.45% - 11.14% 43.78% 12.95% 0.19% 27.63% -8.79% 22.63% 16.67% 12.50% -10.25% 24.11% 11.00% -8.33% 4.10% 14.17% 19.14% - 14.75% -26.40% 37.26% 23.98% -7.26% 6.50% 18.77% 32.48% -4.98% 22.09% 22.37% 6.46% 32.00% 18.40% 5.34% 16.86% 3134% -3.20% 30.66% 7.71% 9.87% 129% 37.71% 23.07% 33.17% 28.58% 21.04% Company Stock 48.45% 9.41% 6.36% -5.66% 65.13% 2184% 3.82% -15.03% 70.63% 17.82% -5.16% 30.48% -16.41% 12.20% 18.75% 37.67% -8.08% 103.39% 50.61%. -32.27% -16.54% 18.44% -0.62% -40.54% -29.74% 69.54% 54.81% 22.02% 22.29% 43.99% 35.34% 7.79% 27.44% 34.49% -14.02% 28.21% 3.40% -13.95% 2172% 8.37% -27.08% 50.24% 27.84% 20.30% -3.34% 33.21% 16.50% 22.36% -2.55% 21.26% 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 50-gear average Standard Deviation 5.226% 5.936% 14.890% 17.103% 2.980% 9.4937 16.695% 29.043%