condition mean min max 4 h after light 12.616036666666666 10.4057 14.85041 8 h after light 11.000569666666667 8.998598 14.0259 12 h after light 9.381782000000001 7.302815 10.922460000000001 16 h after light 18.40537666666667 17.01615 19.747870000000002 4 h after dark 18.538619999999998 16.40504 20.68414 8 h after dark 12.234367 7.388071000000001 16.14012