Chase,
One way to accomplish this would be to add a "Count" line item set to 1 for all cells, that you can use to SUM list formatted line items on. Assuming that Year Built is text formatted, create a list of your years and a line item formatted as that list, then do a FINDITEM(Year Built List, Year Built) to pull in the list formatted year. You can then create a module or line item with the Year Built List as a dimension and SUM on the Count line item you created previously. ex) Module.Year Built Count[SUM: Module.Year Built List Formatted Item]
Regards,
Kelly Reames
