condition mean min max 4 h after light 1.0278575 0.760495 1.29522 8 h after light 0.929792 0.842674 1.01691 12 h after light 0.494938 0.482796 0.50708 4 h after dark 0.489442 0.318557 0.681492 8 h after dark 0.39174866666666663 0.257231 0.550504 12 h after dark 0.407707 0.302452 0.538797