condition mean min max 3 h after light 17.837533333333333 15.0492 21.2476 6 h after light 15.061966666666667 13.6156 16.905 9 h after light 13.8267 12.0813 14.7559 12 h after light 28.010575 19.4935 42.9015 3 h after dark 128.868 118.078 138.09 6 h after dark 99.80176666666667 96.447 103.3 9 h after dark 72.15690000000001 64.9325 76.1765 12 h after dark 45.9566 43.335 48.5782