Very interesting statistical breakdown.
http://documents.adventistarchives.org/Statistics/ASR/ASR2016.pdf
The numbers look good for SDAs. They even calculate deaths and losses in a way JW statistics leave to guesswork. But I suspect there is a degree of nominalism in their membership that is disguised in the figures. Plus they do well in Africa and South America where they offer education and health care. In Europe and North America they are struggling just like JWs.