What I think is most interesting about those statistics is that they lost far, far too more congregations than should be expected. I mean it averages out at 8.5 lost publishers per closed congregation(!) or in other words, a 2.5% reduction in publishers vs. a 16.8% reduction in congregations. How on earth does that make sense?
Either the WT opened FAR too many congregations in the early phase and later consolidated them, or else the numbers of publishers is padded such that the effective number of seats required has been reduced by about 15%.
If the first explanation is true, I think we should have seen the same pattern in other countries (an overall reduction in the number of congregations relative to the number of publishers). Since this is not the case I am leaning towards the numbers being padded.