Before we go to platinum bullion mintage, let me explain what a mintage means. A mintage means a number of coins specific denominations struck in a given year. This word usually applies to all coins regardless to their metal composition and some are what have been called collector coins.
One of the platinum bullion mintage is the platinum Eagle coins. Usually the mintage coins either platinum, silver or gold has their own regular versions of coins in all denominations, proof version of the coins in all denomination and as well as the collectible uncirculated versions of the coins in all denominations.
Figures are marked with asterisk and the numbers are based on recent sales data. Some is with unaudited US mint sales data where in it differs from the final figures when released by the US mint.
For the collector coins, it is available in 4 coins sets where in the number of the coins sold in the set is reflected in individual mintage data. Example in the 2007 half ounce, the proof platinum eagle number includes sales figures which is the 10th anniversary platinum eagle set but that is stated separately.
In regards for the 2009 proof of platinum eagle, this was on sale December 2009, 03 where in each coins contains 1