condition mean min max 4 h after light 162.182452 132.825155 191.539749 8 h after light 198.7109795 151.308967 246.112992 12 h after light 163.9850945 150.616522 177.353667 4 h after dark 143.27697849999998 122.078211 164.475746 8 h after dark 124.84216699999999 112.892355 136.791979 12 h after dark 107.754093 107.754093 107.754093