determine respective interest rates

Monday Tuesday Wednesday Thursday Issue Date 10/31/05 10/31/05 10/31/05 10/31/05 Face Value $ 1,000 $ 1,000 $ 1,000 $ 1,000 Coupon Rate 5.12% 6.23% 3.78% 9.10% Maturity Date 10/31/35 10/31/35 10/31/35 10/31/35 Market Rate 1.25% 0.90% 5.00% 11.40% Purchase Date 10/31/20 10/31/20 10/31/2010/31/20 Purchase Date 10/31/25 10/31/25 10/31/25 10/31/25 Monday Tuesday Wednesday Thursday Issue Date 10/31/05 10/31/05 10/31/05 10/31/05 Face Value $ 1,000 $ 1,000 $ 1,000 $ 1,000 Coupon Rate 5.12% 6.23% 3.78% 9.10% Maturity Date 10/31/35 10/31/35 10/31/35 10/31/35 Market Rate 1.25% 0.90% 5.00% 11.40% Purchase Date 10/31/20 10/31/20 10/31/2010/31/20 Purchase Date 10/31/25 10/31/25 10/31/25 10/31/25