New Jersey interest income detail rounding

In the New Jersey 1040 return, on the interest and dividend worksheet, the detail interest postings are all shown rounded to .oo instead of just the total being rounded. The interest amount is now off a few dollars from the amount on the federal return which shows just the total rounded. The dividend section on the same NJ worksheet shows the detail postings to the exact penny and only rounds the total. Why the difference between the way interest is posted and dividends are posted?  Why are the interest detail items being rounded?