condition mean min max 4 h after light 853.4863574999999 796.612587 910.360128 8 h after light 473.547431 453.212576 493.882286 12 h after light 520.1680695 393.893032 646.443107 4 h after dark 352.15513350000003 332.462826 371.847441 8 h after dark 331.62418049999997 256.223553 407.024808 12 h after dark 1609.864623 1609.864623 1609.864623