condition mean min max 3 h after light 3.7493733333333332 3.02941 4.5037 6 h after light 3.2043566666666665 2.28147 3.98196 9 h after light 5.11163 3.60803 7.07847 12 h after light 13.707032499999999 6.27903 18.9045 3 h after dark 20.041766666666668 19.2635 21.0406 6 h after dark 22.283766666666665 19.419 23.8818 9 h after dark 15.730699999999999 13.423 17.0961 12 h after dark 6.215104999999999 5.54734 6.88287