Some numbers from the 4.6 development cycle

Also keep in mind, that's the number of people who have changes in this release, the people who will have changes in the next release are not all the same.

some of this is people submitting small patches, some of it is people working on larger projects that don't show up until they are done.

There's also the part-time vs full-time question, so you really are comparing apples to oranges.