- A graph range of
12 hshows a more informative overview of the daily traffic. - It's annoying to increase this range after every reboot; 12 hours is right in the middle, so users who want to change it have to drag the slider less compared to the original value.
Value 6 = 30 minutes (6 * 5 m), value 144 = 12 hours (144 * 5 m).