Song Industries has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the table below.

Bond Coupon Rate Price Quote Maturity Face Value

$18\mathrm{.}70\%106\mathrm{.}77$ years $ $26,000,000$

$26\mathrm{.}9093\mathrm{.}710$ years $32,000,000$

$38\mathrm{.}40105\mathrm{.}517\mathrm{.}5$ years $37,000,000$

$48\mathrm{.}9095\mathrm{.}327$ years $52,000,000$

If the corporate tax rate is $22$ percent, what is the aftertax cost of the company$$s debt?