condition mean min max 4 h after light 16.0626835 14.577886 17.547481 8 h after light 15.680124500000002 14.859336 16.500913 12 h after light 16.1360475 15.784608 16.487487 4 h after dark 14.2414135 13.623491 14.859336 8 h after dark 15.4555475 13.054962 17.856133 12 h after dark 12.120775 12.120775 12.120775