Hmm, perhaps a slight increase overall.I don't even view it as that. All things are trending flat or, in the case of congregations, down.
Increases in average publishers and peak publishers are diminishing every year...they're at a plateau and if the diminishing trend of "increase" continues that trend, we will start seeing our first 0% growth over the next decade. I'd put some money on even seeing decreases in the next decade.