As these images show, interest rates are like the tides — rising and falling over the years.

In 1970, we promised customers: “There’s no safer place to earn the highest rates allowed.”

This chart from the promotional materials for the opening of the new Corporate headquarters in Brookfield in 1982 made it easy to compare our interest rates — among other things — to what the competition offered.

These ads from 1994 and 1995 touted our 7.0 percent interest rate on CDs — and the chance to take home a free turkey.

The special offers in celebration of the 10th anniversary of our old Lake in the Hills branch, in 2006, included a 10.00 percent APY on a one-year CD.

And this CD offer from our Kenosha branches from 2013 offered a 1.75 percent APY for 60 months.