generated Yahoo membership stats

As Phil was preparing the RASC Toronto Centre membership statistics, he reached out to get some numbers on the main Yahoo!Group membership numbers. I reminded him that I was, as the IT chair, in charge of this stuff, still assisted by Ralph. Then I verified what he was after and then generated the statistics and a chart for the 2012 season. Sent him an Excel file.

It was interesting to see the group growing by 2 people (median) over the year. Big dips were due to purges...