condition mean min max 0 h after light 3.166555 2.89233 3.44078 4 h after light 5.31032 5.09488 5.52576 8 h after light 13.184349999999998 11.7769 14.5918 4 h after dark 9.558205000000001 6.06021 13.0562 8 h after dark 7.125835 6.89064 7.36103 12 h after dark 3.6189549999999997 2.88845 4.34946