condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 1.1741375 0.752035 1.59624 8 h after light 0.81002 0.0 1.62004 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.55534 0.0 1.11068 8 h after dark 1.195725 0.0 2.39145 12 h after dark 0.0 0.0 0.0