condition mean min max 4 h after light 2.7668150000000002 2.56251 2.97112 8 h after light 2.5398300000000003 2.08677 2.99289 12 h after light 1.96395 1.93297 1.99493 4 h after dark 2.6726266666666665 1.99579 3.46964 8 h after dark 2.02326 1.4783 2.55807 12 h after dark 2.06815 1.08502 3.33004