condition mean min max 3 h after light 2.398803 0.976299 3.15219 6 h after light 1.144453 0.416479 1.93614 9 h after light 1.1748413333333334 0.687594 1.62013 12 h after light 1.981095 1.15974 2.45208 3 h after dark 5.383843333333333 3.47514 6.35826 6 h after dark 5.756266666666667 4.24941 7.36894 9 h after dark 5.67887 3.67553 8.48737 12 h after dark 1.89565 1.7207 2.0706