condition mean min max 3 h after light 3.78554 3.55145 4.22274 6 h after light 3.58463 2.77362 4.34163 9 h after light 1.6538533333333334 1.08131 2.1926 12 h after light 1.9303872499999999 0.938079 3.78315 3 h after dark 1.8963233333333334 1.65598 2.16992 6 h after dark 2.359583333333333 1.51253 2.80172 9 h after dark 2.4780233333333332 1.82485 3.03278 12 h after dark 3.16757 2.71351 3.62163