condition mean min max 4 h after light 13.990749999999998 12.6549 15.3266 8 h after light 12.60445 11.2692 13.9397 12 h after light 13.6134 13.2809 13.9459 4 h after dark 15.593533333333333 14.9085 16.076 8 h after dark 17.6765 17.4022 18.0457 12 h after dark 13.207266666666667 12.9107 13.6128