I have had a profile score as high as 91; but it usually never drops below 85. I have been tracking my statistics and the highest score for any hub has been 77. Though the hub scores fall, I have not seen any below 56. What I have noticed is fluctuating scores; and I plan to prepare a chart because I have the record. Some hubs stay in the 69 -77 range even when they drop. What puzzles me is that there are no comments. Sometimes the statistic shows no visitor for the day; but the hub score goes up. At other times, it falls drastically, even though there has been a visitor or two.Please explain.