False premise - you cannot know the full aggregate of those who actively give to charity regularly. A great number of people including some very wealthy ones p

False premise - you cannot know the full aggregate of those who actively give to charity regularly. A great number of people including some very wealthy ones prefer to give anonymously and often stipulate that as condition of their giving. Furthermore, even with public donations, there is no mechanism to track all of it for various reasons (e.g. many agencies may release totals but not donor/donation details), so you can't know the totals, much less judge the rate changes of that.