Table 9.2 Average Returns for Bonds

Low-risk bonds1950 to 1959Average2.7%1960 to 1969Average4.41970 to 1979Average6.31980 to 1989Average8.31990 to 1999Average4.92000 to 2009Average2.6

Table 9.4 Annual Standard Deviation for T-Bills

Low-risk bonds1950 to 19590.9%1960 to 19691.31970 to 19792.11980 to 19892.91990 to 19991.12000 to 20092.2

Use the tables above to calculate the coefficient of variation of the risk-return relationship in T-bills during each decade since 1950.(Round your answers to 2 decimal places.)

Decade CoV

1950s

1960s

1970s

1980s

1990s

2000s