I somehow remembered that Jeff had attached the data loggers to the electric panel for Expo. He found the files and sent them to me. The attached spreadsheet shows all the usage for every minute that the data loggers were connected. Since there were 2 loggers, I used Excel to combine the data. You will see that in the info starting at A1 through E3344.
Within that data, I removed all the idle time where it was very apparent the loggers were no longer connected (hmmm, nipple clamps?). All that did was skew the average, so I saw no point in it.
The highest recorded usage was 8628 watts, while the average was 4359 watts.
If someone has a bit fancier graphing software, it would be nice to see a graph over time. There is a data point every minute and that is just too many for the built in features of Excel.