condition mean min max 4 h after light 4.12789 1.60335 7.96769 8 h after light 3.773786666666667 1.39117 5.82002 12 h after light 3.24777 3.21685 3.27874 4 h after dark 5.06542 4.97408 5.23759 8 h after dark 3.7038266666666666 2.34766 4.53491 12 h after dark 3.2626500000000003 2.47911 4.76815