The memorial and district convention invitation tracts, and the fact that a jw can remain
active with just 15 minutes of service per month obviously help
I think the numbers would have been negative for 2005 or 2006 (or both) if not for the
15 minute publishers and the "reactivate-publishers-who-just-have-to-leave-flyers-and
-speak-to-nobody" campaigns.
They count publishers in their growth numbers, so now that they have used up these
tricks, expect a push in 2007 for getting children started as unbaptized publishers.
This way, they can put off negative numbers for another year.
Keep in mind that many JW's have started living in "this system of things" after the
1995 doctrinal change. They got married and/or had children when they would have
waited for Armageddon if the light had not gotten brighter. Many of their children are
8 to 11 years old. They have a bunch of these to indoctrinate for a few years.
I expect that the "flyer" campaigns won't be as effective at reactivating publishers this
year, but to keep costs down, they will do it anyway. The 15-minute publishers will be
expanded (without telling the ranks) encouraging any irregular or inactive publishers over
60 to enroll. I expect a break-even on that. About the same number of new ones will
enroll as old ones who drop-out. Even if an old person has to do only 15 minutes, eventually
some will say "No, i didn't do any informal preaching this month, and I am tired of it."
I imagine tiny positive climbs for another year or two, but then all the tricks are used up.