The following table summarizes prices of various default-free zero-coupon bonds (expressed as a percentage of face value):

Bond A B C D

Maturity (years) 1 2 3 4

Price (per $100 face value) 96.62 80.62 81.02 80.50

For bond A, it will mature in 1 year and has a current bond price of $96.62

For bond B, it will mature in 2 years and has a current bond prince of $80.57

Assume the YTM for each bond doesn't change over time. After two years, what is the price for bond D?