condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0451296 0.0441963 0.0460629 8 h after light 0.0223907 0.0 0.0447814 4 h after dark 0.0 0.0 0.0 8 h after dark 0.02194065 0.0 0.0438813 12 h after dark 0.02226355 0.0 0.0445271