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<p>[QUOTE=&quot;Owle, post: 1351717, member: 22004&quot;]It will happen someday, I really miss the relationships I had to books.&nbsp; The internet gives us the resources for free, but someday a meteor storm could ground the satellites that make it work.&nbsp; </p><p><br /></p><p>As for documenting this, it would be a lot easier if you could download the PCGS, NGC and ANACS population reports and do a statistical analysis of the changes from year to year.&nbsp; I doubt there are any populations that go down unless the coins get lost or destroyed in a fire or other disaster, so all the populations are going up as coins come out of the woodwork.</p><p><br /></p><p>The CDN does graphs on most of the coin series--the only problem is that there are significant anomolies in the actual market pricing and what they present.&nbsp; If they were really on the ball they would download all verified industry information into the pricing on a weekly basis.&nbsp; They don&#039;t want to lose subscribers so they are hesitant to run a lot of negative pricing in keeping with current auction and transaction history.&nbsp; I&#039;m not saying they need to run the negatives based on a few results, they undoubtably use up to date weighted averages and ignore problem coins in good holders, or run those on Bluesheet.[/QUOTE]</p><p><br /></p>

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