condition mean min max 4 h after light 10.0920585 9.368494 10.815623 8 h after light 11.674347000000001 11.399268 11.949426 12 h after light 10.197896 9.918354 10.477438 4 h after dark 9.530628 9.142203 9.919053 8 h after dark 10.386046 9.981501 10.790591 12 h after dark 10.243545 10.243545 10.243545