condition mean min max 0 h after light 0.906675 0.0 1.81335 4 h after light 0.89393 0.0 1.78786 8 h after light 0.92294 0.0 1.84588 4 h after dark 0.0 0.0 0.0 8 h after dark 0.900485 0.0 1.80097 12 h after dark 0.905455 0.0 1.81091