Actually annual reports can give a “two-dimensional” misunderstanding when we fail to add the variables.
While it is true that new members are being added to the Jehovah’s Witnesses yearly, the growth has been around only 1% annually on average since 2000. This is actually a decrease in growth.
The Jehovah’s Witnesses publish an annual “yearbook” that includes their own calculations on growth in membership. While these yearbooks go back almost a century, the annual report goes back further into the 1800s. For lack of space I can’t include all that here, but with the Internet I am sure one can find these numbers for themselves to validate what I am about to say.
When I was one of Jehovah’s Witnesses in the 1980s the increase was around 5% annually. Prior to 1975 the average was around 15%. The NCCA report is based on the 2011 statistics (each report contains the figures for the previous year) which show only a 1.85% increase in new members.
What these reports do not tell you is how many Jehovah’s Witnesses leave the religion each year and how many die. The statistics from the Jehovah’s Witnesses also do not take into consideration the possibility of human error in reporting, so no variable is offered or formula provided for this likelihood with their annual report.
If you look up the yearly reports, the years between 1996 and 2005 show an increase of approximately 3 million new members. However the same reports show that only 1.5 million Jehovah’s Witnesses were actively engaged in the religion (one must actively preach each month and send in a report of their activity or they lose their place in the annual report). If one applies the crude mortality rates for this decade to the number of Jehovah’s Witnesses (around 7.6 per 1000 people), this means that some 1 million disappeared from their ranks either through death or inactivity.
The year I officially became a Jehovah’s Witness we had a growth rate of almost 8% that year. Last year the influx of new members was at about 2%.
And rates and studies are what you make of them. For example
the same numbers recently got crunched by The Christian Post who reported that Jehovah’s Witnesses have the next to lowest retention of members of all religions at only 37%.