condition mean min max 4 h after light 5082.765 4835.02 5330.51 8 h after light 6437.625 6331.92 6543.33 12 h after light 6848.635 6838.8 6858.47 4 h after dark 5076.03 5014.19 5183.38 8 h after dark 3811.2033333333334 3728.72 3905.25 12 h after dark 4079.963333333333 3979.37 4243.57