condition mean min max 3 h after light 11.15571 9.12833 12.404 6 h after light 12.150983333333334 9.96315 13.5022 9 h after light 13.6133 12.8695 14.8538 12 h after light 15.860050000000001 15.0943 16.7139 3 h after dark 18.106766666666665 17.3267 18.9994 6 h after dark 16.873033333333332 16.0702 18.1409 9 h after dark 13.389633333333334 11.7142 16.0636 12 h after dark 13.4308 12.6562 14.2054