condition mean min max 4 h after light 2.9776006666666666 2.84654 3.140743 8 h after light 2.142507333333333 1.559957 2.5285279999999997 12 h after light 6.935168333333334 6.263404 7.958082000000001 16 h after light 5.7024729999999995 3.5284150000000003 6.891317999999999 4 h after dark 9.881162333333334 8.019032000000001 12.012369999999999 8 h after dark 2.9732016666666667 1.9625599999999999 3.896383