condition mean min max 4 h after light 2.2270849999999998 1.87325 2.58092 8 h after light 2.7804599999999997 2.57625 2.98467 12 h after light 3.2918450000000004 3.12414 3.45955 4 h after dark 4.381736666666667 4.18489 4.59454 8 h after dark 4.80238 4.52582 4.95987 12 h after dark 3.3532233333333332 2.88387 4.20752