condition mean min max 2 h after light 9.841026666666666 4.73675 17.9834 6 h after light 19.557506666666665 6.25494 49.7898 10 h after light 6.535185 0.0 14.3683 14 h after light 10.130105 3.76854 36.7033 18 h after light 5.13781 1.74095 15.5197 2 h after dark 9.777756666666667 4.13533 17.6377