condition mean min max 4 h after light 16.740778 15.885792 17.595764 8 h after light 16.198815 15.490042 16.907588 12 h after light 20.2302545 15.40871 25.051799 4 h after dark 13.465263 11.588555 15.341971 8 h after dark 15.706637999999998 15.378333 16.034943 12 h after dark 37.614885 37.614885 37.614885