condition mean min max 4 h after light 3.8438499999999998 3.18754 4.50016 8 h after light 3.294275 3.21365 3.3749 12 h after light 3.013325 2.92089 3.10576 4 h after dark 2.89839 1.16897 3.93414 8 h after dark 2.75399 1.91201 3.78814 12 h after dark 3.0660533333333335 2.49058 3.38817