It means:

来源: 于 2014-12-10 14:08:05 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
If you choose rate 1.99%, after 1 year, your rate is prime rate+1.5%;
If you choose 2.99%, then after 3 year your rate is prime+1.5%
if you choose 3.99% then 5 years later, the rate goes to....