Just finished searching through 30 more rolls (1500 cents). Found 8 wheat cents. So far I have found 17 wheatbacks in 4500 searched cents. A 0.38% success rate.
Finally surpassed the 100 wheats milestone for the month. I know this is nothing compared to some of your numbers, but based on the limited time I have I feel excited about it. Any way, at this rate I may be ending with over 1,000 by year end.
YTD Statistics: 106 wheats out of 25,850 cents searched, or 0.41%