REPORT THIS MONTH LAST MONTH DIFFERENCE   South Dakota 89.30 86.60 2.70 SOUTH DAKOTA 10 MONTHS 27 MONTHS THIS YEAR Average 87.54 90.59 86.58 High 92.70 106.00 92.70 Low 85.00 77.90 77.90 Data provided by iNet Solutions Group, Inc. All commodity prices delayed 10 minutes.