Trying to determine how to create a report showing a SAM app monitor for clock drift that reports greatest statistic growth over 7 days

Trying to determine how to create a report showing a SAM app monitor for clock drift that reports greatest statistic growth over 7 days

We collect a statistic showing the amount of time sync difference on each poll, would like to create a report showing the nodes with the greatest "growth" of time sync error for last x amount of days