condition mean min max 4 h after light 0.963233 0.924036 1.00243 8 h after light 1.1517815 0.827953 1.47561 12 h after light 1.17215 1.06295 1.28135 4 h after dark 2.3534066666666664 1.77825 2.82531 8 h after dark 2.12476 1.90643 2.24573 12 h after dark 1.1917473333333333 0.620902 1.73989