condition mean min max 4 h after light 1.9969549999999998 1.98131 2.0126 8 h after light 2.882025 2.81341 2.95064 12 h after light 4.3637250000000005 4.0584 4.66905 4 h after dark 7.94577 7.15293 8.51201 8 h after dark 4.9630133333333335 4.63216 5.23205 12 h after dark 4.038166666666667 3.0563 5.0994