Average Returns for Bonds

Long$-$Term

Treasury Bonds

$\backslash$table$[[1950$ to $1959,$Average,$0\mathrm{.}06],[1960$ to $1969,$Average,$1\mathrm{.}6],[1970$ to $1979,$Average,$5\mathrm{.}7],[1990$ to $1989,$Average,$13\mathrm{.}5],[1990$ to $1999,$Average,$9\mathrm{.}5],[2000$ to $2009,$Average,$8\mathrm{.}0]]$

Table $9\mathrm{.}4$ Annual Standard Deviation for Blonds

Long$-$Term

Treawny Bonds

$\backslash$table$[[1950$ to $1959,4\mathrm{.}96],[1960$ to $1969,6\mathrm{.}2],[1970$ to $1979,6\mathrm{.}8],[1980$ to $1989,15\mathrm{.}1],[1990$ to $1999,12\mathrm{.}8],[2000$ to $2009,10\mathrm{.}3]]$

Calculate the coefficient of variation of the risk$-$return relutionship of the bond market during each decade since $1950.$

Note: Round your anwers to $2$ decimal ploces.