And if you have records for March 2012 and other records for March 2013, how does that affect the totals, averages, etc shown?
For the fields that you want to get this aggregate data: state5, city45, checkbox, price2.... In what table are they defined?
what is meant by the numbers shown in these field names? Do you have 45 city fields?
What kind of "count" do you want from your checkbox field? (That one could well be a problem here.)
Why do you need to see this on an Invoices layout?