condition mean min max 0 h after light 2.69665 2.25766 3.13564 4 h after light 5.326124999999999 2.77745 7.8748 8 h after light 3.4322044999999997 0.896119 5.96829 4 h after dark 7.69865 7.08966 8.30764 8 h after dark 11.75502 9.88394 13.6261 12 h after dark 3.724785 2.4616 4.98797