Just ran some numbers for fun based on the actuals provided by Paul
The X factor is to show by what factor the religion varies from normal population growth ie JW's are negative 7.4x whilst 'no reilgion' is positive 2.6x
What might it look like in Australia in 25 years time - your guess is as good as mine...:-) The Australia government are forecasting around 38 million population by 2056 so a lower growth rate might give numbers like those shown in the last 2 columns.
JW's can look forward to stagnation while showing minimal nominal growth and becoming as significant as the SDA - funny that - cos thats where they come from - right? :-)
Interestingly, because the official number of JWs is publishers, there is quite an discrepency between the publisher figure and the census figure. There were 85,638 JWs in the Census, but in 2011 only 64,498 publishers.
Whats the rule of thumb? About 1 in 3 in any cong are hardcore - the rest are 'making up the numbers' literally......so that 64,498 publishers is really 21,500 true believers...
What I would take from this is that unless the GB make a truly signifcant change in doctrine its just steady as she goes flatline stagnation.
By truly significant I mean an end of the world prediction with a firm date, or scrapping the d2d work, extreme family shunning and medical suicide doctrines etc