condition mean min max 4 h after light 1.222652 0.892654 1.55265 8 h after light 1.83728 1.41467 2.25989 12 h after light 2.238045 1.95348 2.52261 4 h after dark 1.5747373333333332 0.775682 1.9942 8 h after dark 1.384538 0.805154 2.31459 12 h after dark 1.7531166666666667 1.44555 1.93956