so far....in 1981 they had no clue, too much to count <a href="http://www.goldensextant.com/Resources%20PDF/Gold%20Commission%20Report%20Annex%20D.pdf" rel="nofollow" target="_blank">http://www.goldensextant.com/Resources%20PDF/Gold%20Commission%20Report%20Annex%20D.pdf</a>