Thousands of sets have been opened to have all the coins either graded, sold, used for albums, or stolen and cashed in at Coinstar 
If there were real mintage figures then certain sets would be worth 10x what is listed in the RedBook or what the going prices on ebay are
It's kinda like the value of some Morgans that we have No idea how many were actually melted down or left in vaults for decades. Whenever treasure ships are found the coins inside change the value instantly sometimes of current coins thought to be scarce.
Alas we shall never know
If there were real mintage figures then certain sets would be worth 10x what is listed in the RedBook or what the going prices on ebay are
It's kinda like the value of some Morgans that we have No idea how many were actually melted down or left in vaults for decades. Whenever treasure ships are found the coins inside change the value instantly sometimes of current coins thought to be scarce.
Alas we shall never know



















