Answer :

January 7, 1969  =   7%

March 17, 1969  =   7.5%

June 9, 1969  =   8.5%

Hey! I dug into a couple of government websites and did a little research and fou nd your answer! :D These number should help! Also check out the attachment to see more detailed. Hope I helped! Thanks for using Brainly!

View image Joel0920