condition mean min max 2 h after light 12.710425 8.74339 19.2173 6 h after light 10.302018333333333 6.8993 13.2338 10 h after light 8.468075 5.95884 10.3657 14 h after light 12.236601666666667 8.26211 15.4823 18 h after light 13.151328333333334 9.42777 15.5905 2 h after dark 52.60053333333333 29.7534 86.2