table 9.2 average returns for bonds

1950-1959 average long term treasury bonds 0.0%

1960-1969 average 1.6%

1970-1979 average 5.7%

1980-1989 average 13.5%

1990-1999 average 9.5%

2000-2009 average 8.0%

table 9.4 annual standard deviation for bonds

1950-1959 long term treasury bonds 4.9%

1960-1969 6.2%

1970-1979 6.8%

1980-1989 15.1%

1990-1999 12.8%

2000-2009 10.3%

calculate the coefficient of variation of the risk-return relationship of the bond market during each decade since the 1950s

Decade: CoV:

1960s

1970s

1980s

1990s

2000s