The q.csv file is from a slightly dated version of the
US coin Mintage data on Clint Cummins' web page
   http://www.stanford.edu/~clint/q
It contains 7 columns:
1. Denomination  (.005 = half cent, .10 = dime, 1. = dollar, etc.)
2. Year  (numeric)
3. Mintmark  (string, 0-2 characters)
4. Description  (string, 0-15 characters)
5. Total mintage  (numeric)
6. Proof mintage  (numeric)
7. Comments  (0-35 characters)
   All the denominations are stacked together, from half cent
to $20 gold.  Commemoratives, Bullion, Proof Sets, and Mint Sets
are not included.
    This is just a simple attempt at making a "CSV" (comma separated
value) file that can be read into Excel or database programs like Access.

Clint Cummins  1/6/1999
clint@leland.stanford.edu