condition mean min max 4 h after light 2840.48 2159.42 3411.84 8 h after light 2381.8973333333333 775.482 3900.07 12 h after light 2862.67 2100.38 3830.78 4 h after dark 3442.846666666667 2652.11 3874.13 8 h after dark 3439.15 2958.46 3857.91 12 h after dark 3886.85 3504.42 4256.58