condition mean min max 4 h after light 98.282978 62.924693 133.641263 8 h after light 13.1796705 12.503112 13.856229 12 h after light 14.816717999999998 12.829868 16.803568 4 h after dark 12.903452 12.086692 13.720212 8 h after dark 14.27548 13.52059 15.03037 12 h after dark 203.524403 203.524403 203.524403