condition mean min max 0 h after light 5.950365 5.69695 6.20378 4 h after light 5.61585 2.80344 8.42826 8 h after light 11.95235 10.4852 13.4195 4 h after dark 11.897755 8.63161 15.1639 8 h after dark 7.66855 7.44508 7.89202 12 h after dark 5.232905000000001 5.16287 5.30294