condition mean min max 4 h after light 18.207506666666667 14.63486 21.50628 8 h after light 16.912621333333334 6.769334 28.77233 12 h after light 19.855823333333333 17.325879999999998 23.013679999999997 16 h after light 28.532606666666666 22.0807 36.87382 4 h after dark 24.314133333333334 23.4642 25.480320000000003 8 h after dark 19.560769999999998 18.32752 21.084989999999998