ISP network traffic as weekly cycle productivity meter

The above is a chart of the network traffic of an Internet service / connection provider over the course of seven days. Note that while Monday-Friday shows a pentuple self-similar pattern of the daily cycle, the amount of network utilization actually drops a regular percentage every weekday, where on Friday it is significantly lower than what it was Monday. Something we all knew, now quantified down to the byte.

Also interesting is that Saturday and Sunday are mirror images of each other, with most of the activity on Saturday happening early in the day and vice-versa on Sunday. I would have predicted the opposite, but that just speaks to my own lifestyle, I suppose.