condition mean min max 4 h after light 5729.198 5038.977 6274.134 8 h after light 2605.1943333333334 1885.384 3326.865 12 h after light 2124.3573333333334 2021.592 2210.0429999999997 16 h after light 4222.344333333333 3891.43 4763.274 4 h after dark 5633.517 5474.880999999999 5786.477 8 h after dark 5062.1 3947.72 6427.126