condition mean min max 2 h after light 14.598876666666666 9.88706 17.3845 6 h after light 10.843835 6.26448 15.076 10 h after light 11.593256666666667 8.80714 13.7183 14 h after light 10.963465 8.77027 14.567 18 h after light 12.053405 7.97613 13.4015 2 h after dark 8.178688333333334 4.52295 11.1946