How much , on average, would a common coin increase

in value over the course of 10 years? I have a '97 Krause that I am still working with, one that I bought from Lordminivan. I think I am ready for an updated version.
"If I had a nickel for every nickel I ever had, I'd have all my nickels back".
0
Comments
depends on the price of silver
In 10 years, much classic material has gone up 50% or more, most common modern material has stayed flat, some Scandinavian material has gone down, and most Russian material has tripled or quadrupled.
It really depends on the area...
1/2 Cents
U.S. Revenue Stamps
were ten years ago. Lower grade pieces are mostly flat.
Those older Krause books are worth having for that simple fact- you get nearly two centuries of coverage in one volume, whereas nowadays you have to buy a separate volume for each century. (Not to mention that the new format is rife with errors and omissions).