I've taken a quick look at the mintage numbers of US dimes over the past 54 years to see if I see any trends in the use of currency. I choose the dime for no good reason. Here is a quick look at the average mintage in each decade of circulating dimes: 1960's 1.072 billion/year 1970's 0.921 billion/year 1980's 1.490 billion/year 1990's 2.198 billion/year 2000's 2.188 billion/year 2010's 1.777 billion/year I was expecting that the use of coins would be reducing in this age of electronic transfers and debit and credit cards but it appears that the reduction in dime mintage is more related to the recession. The 2013 mintage at 2.057 billion/year has nearly returned to levels prior to the start of the recession in late 2008. It appears that the death of currency isn't happening at the pace that I would have expected. I'm not sure if that is good or bad for our hobby but I'm thinking good.