Ariesrising also has a site (although I am not computer savvy enough to post the link here! sorry!) that she put much time and effort into that has some stats according to active collegiate chapters and initiated members. And while many people say, "Wait, my org has 145 chapters, NOT 143!!!!!" A chapter here or there, and a few initiates here or there don't make that big of a difference! Her site is also nice because it has badges and other fun stuff!!!
Do a search for her username and the link is in her signature.