REPORT THIS MONTH LAST MONTH DIFFERENCE   Illinois 82.60 80.40 2.20 ILLINOIS 10 MONTHS 27 MONTHS THIS YEAR Average 83.06 88.66 83.41 High 87.20 98.20 87.20 Low 80.40 80.40 80.40 Data provided by iNet Solutions Group, Inc. All commodity prices delayed 10 minutes.