Developing a utility like this means you are inevitably going to use it
inhouse for some application. One need we immediately discovered was to
explore the relationships of all PUMA areas to all other geographies.
Thus, we wrote a script, stuck it in a loop and ran it. The results are
posted below for your convenience.If you think we should perform such
services for other source/target geographies, or combinations of
geographies, please let us know.