condition mean min max 3 h after light 2.92419 1.93315 4.14511 6 h after light 5.2942 4.5049 6.1087 9 h after light 5.95427 4.58578 7.25824 12 h after light 4.3669725 1.8306 5.67944 3 h after dark 2.5700933333333333 2.08882 3.45093 6 h after dark 1.80829 1.35731 2.11835 9 h after dark 2.3862866666666664 1.86807 3.06018 12 h after dark 1.6449599999999998 1.25911 2.03081