condition mean min max 4 h after light 11341.443333333333 10903.59 11624.86 8 h after light 10854.620666666668 7788.302 13739.53 12 h after light 6173.758 5230.215 7441.932 16 h after light 13089.76 11825.42 15042.49 4 h after dark 10844.543333333333 10692.62 10972.57 8 h after dark 8738.245333333332 7056.637 10412.58