condition mean min max 4 h after light 3.499422 3.417383 3.637161 8 h after light 4.039266333333333 2.770679 5.900367 12 h after light 3.824742 2.451469 5.375406 16 h after light 4.5159286666666665 3.175677 6.51918 4 h after dark 3.0289106666666665 2.545389 3.2942839999999998 8 h after dark 3.334883 1.6392950000000002 5.832725