condition mean min max 4 h after light 0.6546624999999999 0.325426 0.983899 8 h after light 0.699292 0.597866 0.800718 12 h after light 0.9789425 0.538085 1.4198 4 h after dark 1.1762125 0.863255 1.48917 8 h after dark 1.6957300000000002 1.13716 2.2543 12 h after dark 1.250116 0.909622 1.59061