I think that the way the date is displayed is a bit confusing. It shows, for example, 1.1960, 2. 1960, 3.1960, 4.1960... That means that each turn is a trimester (3 months) and that you have 4 turns in the year, right ? So, IMHO, JAN 1960, APR 1960, JUL 1960, OCT 1960 would make much more sense.
Just my two cents, for what I think is an easy fix
