condition mean min max 4 h after light 9.639757333333334 2.7957009999999998 23.04412 8 h after light 2.108868 1.53748 2.484858 12 h after light 1.476685 1.41635 1.554522 16 h after light 2.9757493333333334 2.613259 3.430282 4 h after dark 2.3858306666666667 2.239826 2.6616020000000002 8 h after dark 1.5646153333333335 1.516161 1.61374