condition mean min max 4 h after light 11.930405 9.66391 14.1969 8 h after light 8.811789999999998 8.31022 9.31336 12 h after light 10.9192 10.5028 11.3356 4 h after dark 12.6195 10.6503 14.4416 8 h after dark 11.803533333333334 10.9558 12.97 12 h after dark 13.253066666666665 11.5301 16.2628