The best leading indicator of the JW membership count is the baptism count as it directly measures the efficiency of the field service. The baptism numbers represent the combined result of total hours, total literature, and total bible studies; it is the most reliable predictor of future membership counts.
And this is what has the WTBTS worried. They see the handwriting on the wall in nearly all of the developed countires and also some lesser developed countries. A one year decline in baptisms can be easily dismissed as a statistical fluke. Two consecutive years of decline is harder to explain in a good light. Three of more years of baptism count decline can only mean that the field service in a country is near collapse, or has already collapsed.
Here is a list of those countries that have had three or more consecutive years of decline in baptisms.
Three consecutive years of decline in baptisms:
Argentina
Cuba
Guatemala
India
Malawi
United States
Venezula
Four consecutive years of decline in baptisms:
Britain
Estonia
Germany
Hungary
Latvia
Mexico
Portugal
Russia
Switzerland
Five consecutive years of decline in baptisms:
Belgium
Canada
Finland
Poland
Slovakia
Sweden
Seven consecutive years of decline in baptisms:
Czech Republic
Italy
Japan
Eight consecutive years of decline in baptisms:
Denmark
Eleven consecutive years of decline in baptisms:
France