condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 2.785e-06 0.0 5.57e-06 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0