The first number is the time. The second is the total count of course adds, drops and transfers within that ten minute slice. The rest is a little bar graph for quick comparisons.
The average busy day is about 300. Over 500 is very busy. Under 100 is light.
Enrolment Statistics for add/drop/transfer. Ten minute snapshots: 20150214:11:50 The Bar graph factor is 10. 01:30 - 2 : 02:20 - 2 : 04:10 - 1 : 04:30 - 1 : 05:40 - 5 : 06:20 - 2 : 20:10 - 1 : 20:20 - 3 : 20:50 - 11 : - 22:30 - 2 : 22:50 - 5 : 23:00 - 1 : 23:10 - 3 : 23:30 - 1 : done.