What is is asking is how much to the student loan interest is for while you were a part year resident of OR.
So you have to do some math calculation. Let's say 4 months you in OR, and paid interest on the student loan throughout the year. Take the student loan interest paid in 2016 and multiple it by 4/12's or 1/3, and that is how much in my example would be allocated to OR.
So figure out the months and compute it. It is an approx. amount.