condition mean min max 3 h after light 0.9452913333333334 0.686264 1.09194 6 h after light 0.6964086666666667 0.155271 1.28431 9 h after light 0.981239 0.692136 1.27587 12 h after light 1.7740067499999999 0.936807 2.32176 3 h after dark 5.201956666666667 3.79825 5.91849 6 h after dark 5.457263333333334 4.04458 6.51304 9 h after dark 4.39309 3.05697 5.70958 12 h after dark 1.97428 1.83704 2.11152