I have a large list of sites that have usage data for each day of the month. My end goal is to retrieve the average of the ten highest days for each site. I can get the averages of each site for the whole month and I can also get the top ten days for an individual site. I just can't seem to close the loop on getting the individual average of the 10 highest days usage. Please see attachment for an illustration. The obstacle seems to be performing the average function for each individual site grouping. Any suggestions would be greatly appreciated!