condition mean min max 4 h after light 2.8606 2.38393 3.33727 8 h after light 3.77373 3.54312 4.00434 12 h after light 3.980335 3.37549 4.58518 4 h after dark 2.9479033333333335 2.83361 3.03541 8 h after dark 2.25456 1.91701 2.43992 12 h after dark 2.3263233333333333 2.24029 2.45621