.. so while taking a dump, i grab a fortune rag (vanity fair was just too far a stretch) and flip thru a tokyo advertorial and find said index..

http://cdn.theatlanticcities.com/img/upload/2012/04/02/Global-Cities-Index-bloomberg-infographic_.jpg

the foundation defines both city proper and metro area pop but doesn't mention which # it primarily uses.. may be easy to attach say, jersey city/manzos to nyc due to obvious proximity, but would say san jo part of sf?