interestingly the official WT site carries the annual report (from the horses mouth)
http://www.watchtower.org/e/statistics/worldwide_report.htm
Yes it does, but the official WT site statistics for publishers are confined to peak numbers, with no indication of average publishers and the % increase/decrease of average publishers compared to the previous years. I suppose there's nothing "wrong" with this selective parading of statistics, but it does invite questions about how even-handed the presentation of statistics is - especially when no meaningful context is provided for the numbers.