condition mean min max 4 h after light 15.1525 14.2889 16.0161 8 h after light 9.775680000000001 9.47516 10.0762 12 h after light 9.70355 8.6405 10.7666 4 h after dark 8.98489 8.35788 9.6119 8 h after dark 10.329550000000001 9.5189 11.1402 12 h after dark 9.738885 9.31607 10.1617