Good     low      base       high
  Ship's Rations (0s  5c) ( 0s 20c) (  1s 70c)
            Hemp (0s 12c) ( 0s 50c) (  4s 25c)
  Luxury Rations (0s 18c) ( 0s 75c) (  6s 37c)
             Rum (0s 25c) ( 1s  0c) (  8s 50c)
 Powder and Shot (0s 50c) ( 2s  0c) ( 17s  0c)
          Canvas (0s 50c) ( 2s  0c) ( 17s  0c)
        Molasses (0s 60c) ( 2s 40c) ( 20s 40c)
            Silk (0s 62c) ( 2s 50c) ( 21s 25c)
          Timber (0s 75c) ( 3s  0c) ( 25s 50c)
          Spices (1s 25c) ( 5s  0c) ( 42s 50c)
        Journals (1s 50c) ( 6s  0c) ( 51s  0c)
            Maps (2s 25c) ( 9s  0c) ( 76s 50c)
            Gold (7s 50c) (30s  0c) (255s  0c)