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			5.4	%			105.26			5	years		$	34,000,000
2			6.9				113.92			8	years			29,000,000
3			6.6				112.47			15.5	years			49,000,000
4			6.2				101.71			25	years			44,000,000

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.)

Cost of debt

%