.21 % ) and 0.01% ( 0.01 % ) , respectively . these notes are callable at various times after 30 years at a stated percentage of par value , and putable by the note holders at various times after 10 years at a stated percentage of par value . the notes have maturities ranging from 2049 through 2066 . in march , june and august 2016 , we issued floating rate senior notes in principal balances of $ 118 , $ 74 and $ 35 million , respectively