@SolarPenny: A good question that is always worth revisiting.
The mintage figure posted on a coin's page on the
RCM web site is the maximum number of coins that are available for that particular piece. It does not mean that all of them will be struck. In fact, the
RCM generally strikes the coins in smaller batches based on expected/actual sales volume.
The figures presented in the
RCM Annual Reports are the sales figures for each coin.
To determine a coin's final actual mintage, add up all of the sales figures from the Reports.
If the
RCM has stock of an issue after its sales period (one year) is over, the stock is melted/destroyed. The number of melted/destroyed coins is not included in the Annual Report figures.
Most of the
RCM's coins do not sell out their maximum available mintage and so are a bit more "scarce" than some believe. (I use the "scarce" term with caution as most of the
RCM's modern NCLT releases are not close to being truly scarce!) It usually takes the standard reference catalogs a couple of years to catch up (they initially publish the "maximum available" figure and then revise it later to reflect the final sales figure.)
Hope that helps!