condition mean min max 4 h after light 58.31367 50.308456 66.318884 8 h after light 68.714146 54.27427 83.154022 12 h after light 66.098067 61.840442 70.355692 4 h after dark 66.1894465 65.699284 66.679609 8 h after dark 29.990507 24.429218 35.551796 12 h after dark 39.028595 39.028595 39.028595