Server Population Compilation

Tony gave me a great link for a widget of sorts that says how many people are logged into each US server. At the moment, I don't know what it links to to get that information nor how often it's updated. Presumably multiple times per day. As of this writing, I'm planning on doing a week of compilation of the numbers, ultimately producing a spreadsheet and graphs of the data. Should be an interesting project and I'm curious to see what patterns emerge. Of course, we're not looking at total subscribers, but those numbers aren't nearly as useful, at least to those of us playing, than the number of active players.