Average Turnaround Time by Throughput

I've been trumpeting Listology's Netflix Tracker for months now, because I'm so excited about its potential uses. The Netflix Tracker is collecting data from currently active Netflix subscribers, who report when they receive or return discs to Netflix. Jim has finally decided he has enough data to draw some interesting conclusions. He has designed a brilliant report which shows what turnaround time we experience in relation to how many discs we rent from Netflix over the last three months. It's called the Average Turnaround Time by Throughput report.