How can I show top ten records from 2002 to 2004 along with the percentages of increases or decreases (will connect my query to a report).

For example if I run a query for 2002 I will get top ten cities, but I would also like to view 2003 and 2004 at the same time and compare the differences.

Once I get that settled I would like to place top 10 cities in a report from 2002-2004.

Thanks,
Michael