condition mean min max 4 h after light 6.010205 5.72423 6.29618 8 h after light 4.2903199999999995 4.07088 4.50976 12 h after light 4.47908 4.35802 4.60014 4 h after dark 6.11653 5.71464 6.51842 8 h after dark 5.5143450000000005 5.40966 5.61903 12 h after dark 5.897005 5.53192 6.26209