Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table.

Bond	Coupon Rate	Price Quote	Maturity	Face Value
1	6.1%	105.96	5 years	$41,000,000
2	7.6	114.62	8 years	36,000,000
3	7.3	113.17	15.5 years	56,000,000
4	6.9	102.41	25 years	51,000,000

If the corporate tax rate is 35 percent, what is the aftertax cost of the companys debt? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)