I auto-filter my spreadsheet down to a general category, and I get 443 rows.
Each row entry is identified with a code that looks like "one or two
numbers.one or two numbers.one or two numbers". There are about 110 unique
identifiers spread unevenly down these 443 rows. My task is to find out how
many rows there are for each unique identifier.

I guess I could use the auto-filter and just hit each unique identifier and
write down the count, but I'd like to think a code routine could count
faster than I can! But I'm not sure how to approach this to make sure I get
only the unique identifiers. Any thoughts are appreciated.

Ed