condition mean min max 4 h after light 12.820839 11.933 13.708678 8 h after light 10.333521000000001 10.068486 10.598556 12 h after light 9.714798 9.379058 10.050538 4 h after dark 11.806514 11.54829 12.064738 8 h after dark 14.516546000000002 12.746888 16.286204 12 h after dark 11.311203 11.311203 11.311203