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Posted By: Rhett Yeakley

Jim, I don't think it is a streatch to think that the # of cards in each grade are sold proportionately to their populations. Do you have information that would say otherwise?

IF cards are sold proportionately to their populations, it isn't a big stretch to think that adding up values (or sales) of the cards in 8 and above then comparing to values (or sales) of cards with grades 7 and below (raw also included in this group) and saying a similar proportion (in # of cards) within each group are sold each time period (be it a decade, a year, etc.) would be a indication of "market".

-Rhett