I'm looking for some statistics on the usage/popularity/availability/etc of object relational mapping frameworks (ORMs).
An example might be how the number of downloads of a specific ORM has changed over time.
Does anyone know of any such statistics?
Edit: A little clarification: The reason I want the statistics is to be able to back up statements about the increased popularity of ORM frameworks in general, so any statistics about any framework would be appreciated, but if it is a printed source that would be awesome.