condition mean min max 4 h after light 5.052315 4.15507 5.94956 8 h after light 3.94403 3.60724 4.28082 12 h after light 3.89574 3.87069 3.92079 4 h after dark 6.216516666666666 5.99243 6.41414 8 h after dark 6.177256666666667 5.63792 6.82992 12 h after dark 5.122973333333333 4.34544 5.71753