Ying Import 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
1	8.80%	105.3	4 years	$23,000,000
2	6.50	95.1	7 years	43,000,000
3	8.50	104.1	14.5 years	48,000,000
4	9.00	106.0	24 years	63,000,000

If the corporate tax rate is 40 percent, what is the aftertax cost of the companys debt? (Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g., 32.16).)

Aftertax cost of debt

%