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| Year | T-Bill Total Return | T-Bill Annualized 10 Year Returns | T-Bill Annualized 20 Year Returns | T-Bond Total Return | T-Bond Annualized 10 Year Returns | T-Bond Annualized 20 Year Returns |
| 1950 | 1.17% | 4.32% | 3.24% | 0.43% | 2.20% | 3.06% |
| 1951 | 1.48% | 4.55% | 3.39% | -0.30% | 2.47% | 3.17% |
| 1952 | 1.67% | 4.67% | 3.51% | 2.27% | 2.19% | 2.85% |
| 1953 | 1.89% | 5.03% | 3.75% | 4.14% | 2.16% | 2.96% |
| 1954 | 0.96% | 5.46% | 4.09% | 3.29% | 2.33% | 2.73% |
| 1955 | 1.66% | 5.67% | 4.30% | -1.34% | 2.28% | 2.44% |
| 1956 | 2.56% | 5.68% | 4.43% | -2.26% | 1.78% | 2.07% |
| 1957 | 3.23% | 5.76% | 4.52% | 6.80% | 1.43% | 2.34% |
| 1958 | 1.78% | 5.93% | 4.78% | -2.10% | 1.97% | 2.03% |
| 1959 | 3.26% | 6.26% | 5.11% | -2.65% | 1.22% | 1.68% |
| 1960 | 3.05% | 6.72% | 5.52% | 11.64% | 0.87% | 1.99% |
| 1961 | 2.27% | 7.69% | 6.12% | 2.06% | 2.20% | 2.19% |
| 1962 | 2.78% | 8.40% | 6.53% | 5.69% | 2.18% | 2.36% |
| 1963 | 3.11% | 8.57% | 6.80% | 1.68% | 2.35% | 2.32% |
| 1964 | 3.51% | 8.75% | 7.11% | 3.73% | 2.17% | 2.38% |
| 1965 | 3.90% | 8.90% | 7.29% | 0.72% | 2.73% | 2.22% |
| 1966 | 4.84% | 9.01% | 7.35% | 2.91% | 3.06% | 2.21% |
| 1967 | 4.33% | 9.07% | 7.41% | -1.58% | 2.63% | 2.09% |
| 1968 | 5.26% | 9.02% | 7.47% | 3.27% | 2.69% | 2.15% |
| 1969 | 6.56% | 8.84% | 7.55% | -5.01% | 3.35% | 1.67% |
| 1970 | 6.69% | 8.47% | 7.59% | 16.75% | 1.50% | 2.49% |
| 1971 | 4.54% | 7.60% | 7.65% | 9.79% | 3.13% | 2.99% |
| 1972 | 3.95% | 6.84% | 7.62% | 2.82% | 3.58% | 3.02% |
| 1973 | 6.73% | 6.30% | 7.43% | 3.66% | 3.71% | 2.99% |
| 1974 | 7.78% | 5.73% | 7.24% | 1.99% | 3.70% | 2.93% |
| 1975 | 5.99% | 5.54% | 7.22% | 3.61% | 3.84% | 3.18% |
| 1976 | 4.97% | 5.44% | 7.22% | 15.98% | 3.92% | 4.09% |
| 1977 | 5.13% | 5.37% | 7.22% | 1.29% | 5.87% | 3.81% |
| 1978 | 6.93% | 5.20% | 7.11% | -0.78% | 5.65% | 3.88% |
| 1979 | 9.94% | 4.84% | 6.84% | 0.67% | 6.12% | 4.04% |
| 1980 | 11.22% | 4.66% | 6.56% | -2.99% | 4.34% | 3.31% |
| 1981 | 14.30% | 4.46% | 6.03% | 8.20% | 2.92% | 3.62% |
| 1982 | 11.01% | 4.29% | 5.57% | 32.81% | 3.51% | 4.98% |
| 1983 | 8.45% | 4.09% | 5.20% | 3.20% | 6.75% | 5.05% |
| 1984 | 9.61% | 3.82% | 4.78% | 13.73% | 6.89% | 5.55% |
| 1985 | 7.49% | 3.57% | 4.55% | 25.71% | 8.01% | 6.80% |
| 1986 | 6.04% | 3.53% | 4.48% | 24.28% | 9.09% | 7.87% |
| 1987 | 5.72% | 3.49% | 4.43% | -4.96% | 11.65% | 7.70% |
| 1988 | 6.45% | 3.18% | 4.19% | 8.22% | 11.18% | 7.95% |
| 1989 | 8.11% | 2.74% | 3.79% | 17.69% | 12.02% | 9.08% |
| 1990 | 7.55% | 2.18% | 3.42% | 6.24% | 14.32% | 8.56% |
| 1991 | 5.61% | 1.81% | 3.14% | 15.00% | 14.10% | 8.82% |
| 1992 | 3.41% | 1.65% | 2.97% | 9.36% | 12.13% | 9.15% |
| 1993 | 2.98% | 1.56% | 2.82% | 14.21% | 12.81% | 9.67% |
| 1994 | 3.99% | 1.44% | 2.63% | -8.04% | 12.86% | 9.17% |
| 1995 | 5.52% | 1.16% | 2.36% | 23.48% | 9.11% | 10.17% |
| 1996 | 5.02% | 0.74% | 2.14% | 1.43% | 9.02% | 9.44% |
| 1997 | 5.05% | 0.42% | 1.95% | 9.94% | 9.73% | 9.87% |
| 1998 | 4.73% | 5.20% | 7.11% | 14.92% | 9.92% | 10.66% |
| 1999 | 4.51% | 4.84% | 6.84% | -8.25% | 9.62% | 10.21% |
| 2000 | 5.76% | 4.66% | 6.56% | 16.66% | 8.01% | 11.19% |
| 2001 | 3.67% | 4.46% | 6.03% | 5.57% | 8.19% | 11.06% |
| 2002 | 1.66% | 4.29% | 5.57% | 15.12% | 7.77% | 10.18% |
| 2003 | 1.03% | 4.09% | 5.20% | 0.38% | 7.87% | 10.03% |
| 2004 | 1.23% | 3.82% | 4.78% | 4.49% | 8.80% | 9.57% |
| 2005 | 3.01% | 3.57% | 4.55% | 2.87% | 6.69% | 8.43% |
| 2006 | 4.68% | 3.53% | 4.48% | 1.96% | 6.85% | 7.31% |
| 2007 | 4.64% | 3.49% | 4.43% | 10.21% | 5.97% | 8.07% |
| 2008 | 1.59% | 3.18% | 4.19% | 20.10% | 5.44% | 8.67% |
| 2009 | 0.14% | 2.74% | 3.79% | -11.12% | 8.59% | 7.23% |
| 2010 | 0.13% | 2.18% | 3.42% | 8.46% | 5.51% | 7.34% |
| 2011 | 0.03% | 1.81% | 3.14% | 16.04% | 5.83% | 7.39% |
| 2012 | 0.05% | 1.65% | 2.97% | 2.97% | 5.93% | 7.07% |
| 2013 | 0.07% | 1.56% | 2.82% | -9.10% | 6.22% | 5.90% |
| 2014 | 0.05% | 1.44% | 2.63% | 10.75% | 4.71% | 6.84% |
| 2015 | 0.21% | 1.16% | 2.36% | 1.28% | 5.59% | 5.73% |
| 2016 | 0.51% | 0.74% | 2.14% | 0.69% | 5.51% | 5.70% |
| 2017 | 1.39% | 0.42% | 1.95% | 2.80% | 4.45% | 5.34% |
| 2018 | 2.37% | 0.49% | 1.84% | 0.07% | 2.28% | 4.60% |
| Average | 4.22% | 4.46% | 4.95% | 5.70% | 5.73% | 5.59% |
| Standard Deviation | 3.00% | 2.44% | 1.82% | 8.58% | 3.51% | 3.01% |
