condition mean min max 1 h after light 15.04531591 14.79508594 15.29554588 3 h after light 13.299168826666666 12.5966712 14.00892055 5 h after light 14.802790799999999 13.43276306 15.59672897 7 h after light 14.132084696666666 13.24577916 15.48033774 9 h after light 15.07389497 14.270413399999999 15.67064324 11 h after light 14.792812426666666 14.15227539 15.40528286 13 h after light 15.511670206666667 14.88414165 16.38734711 15 h after light 15.376221083333334 14.51137989 16.06188448 1 h after dark 18.586512363333334 17.84100902 19.20355899 3 h after dark 17.195007269999998 16.46617919 18.43397816 5 h after dark 18.812694546666666 17.90579388 20.56292363 7 h after dark 16.766193870000002 15.61653429 18.79683457