How to get Projects Cross Subject Area Analysis to show projects both with and without Billed Accoun

Summary

How to get Projects Cross Subject Area Analysis to show projects both with and without Billed Account Name

Content

I have created a simple analysis using Projects Cross Subject Area Analysis -Real Time. The Analysis includes the Project Number, Project Name, Project Status.  When I add in the "Bill-to Customer Details of Customer Number" and "Billed Account Name" from the same subject area it no longer returns projects that don't have a "Bill To Customer Number".  How do I get it to pull all projects regardless of if there is data in the Bill-to fields?