condition mean min max 4 h after light 6.466111111 5.985 6.74 8 h after light 7.355555555666666 5.81 9.51 12 h after light 5.7588888890000005 3.683333333 7.346666667 1.5 h after dark 5.221111111 3.83 6.75 5.5 h after dark 5.0444444446666665 3.13 6.206666667 9.5 h after dark 7.1899999999999995 5.656666667 8.18