Unless you're talking about pennies, I don't see many nickels going even double the population of Canada prior to '60. With dimes and quarters they pretty much made 1 dime and 1 quarter a citizen prior to '60. Halves and Dollar coins are a different story by being quite low in their mintages, this is caused by the fact that people would treat the halves and dollars similar to how one would treat a $5 and $10 bill today. Thus, they lasted in circulation for long periods of time, also meaning they have a high survival rate especially in today's society where most of them sit among people who admire them - us mainly.