condition mean min max 4 h after light 0.958153 0.571766 1.34454 8 h after light 1.272753 0.833686 1.71182 12 h after light 1.673645 1.33043 2.01686 4 h after dark 1.25313 1.01115 1.49511 8 h after dark 1.2435999999999998 1.15522 1.33198 12 h after dark 0.9877360000000001 0.828052 1.14742