You would like to immunize a liability that is payable in a lump-sum 9 years from now. The present value of the liability is $1,000,000 and you are asked to immunize the liability by investing in a 6 -year zero-coupon bond and in a 15-year 6% coupon bond with a duration equal to 14.7. What proportion of your portfolio should be allocated to the 6-year zero-coupon bond to immunize the liability? Enter your answer to 4 decimal places eg if your answer is 6.54% enter as 0.0654. If your answer is 6% enter as 0.0600 The proportion of the portfolio should be allocated to the 6-year zero-coupon bond to immunize the liability is