condition mean min max 0 h after light 2.00622 1.62839 2.38405 4 h after light 3.02198 1.87709 4.16687 8 h after light 5.802435 4.74333 6.86154 4 h after dark 5.48804 3.52604 7.45004 8 h after dark 4.178095 3.76693 4.58926 12 h after dark 2.45607 1.94797 2.96417