condition mean min max 4 h after light 1747.859 1573.8470000000002 1983.0479999999998 8 h after light 3813.318 2827.882 4700.666 12 h after light 2795.3976666666667 2475.535 3332.59 16 h after light 2969.2816666666668 2599.882 3635.478 4 h after dark 3560.487 3400.1 3693.632 8 h after dark 1967.9946666666667 1545.81 2242.467