According to
http://www.cumorah.com/index.php?target=main&wid=30:
Code: Select all
# Faith Congregations Active Members Adherents Percent Annual Growth
1 Catholic 0 0 147280800 80.00% 0.94%
2 Jehovah's Witnesses 8099 536270 1329194 0.72% 0.94%
3 Seventh-day Adventists 3599 936575 1873150 1.02% 6.00%
4 Latter-day Saints 1796 254788 1019153 0.554% 3.51%
The site declares the line 4 is from
Official LDS Statistics...
(LDS membership and unit data are derived from the
LDS Church Almanac)

(Price: $19.95)
As the retention rate is 20-25 % outside of US, this fits to the standard.
The same case in Chile and the Philippines, where the census and official data shows some difference...
somebody
(google helps You to guess who and where)
wrote:Elder Holland and Elder Oaks were sent to Chile and the Phillipines respectively, I have been curious about the results of their tours. I’ve been reading Plutarch lately, so I can’t help but thinking about them as proconsuls, sent out by the Mormon Senate to set the provinces in order.
From
http://www.sltrib.com/faith/ci_3661419 (By Peggy Fletcher Stack The Salt Lake Tribune Published April 1, 2006 12:00 am,
and it is nothing about April 1):
By the numbers
535,000 - Members on the LDS Church rolls
200,000 - Names in the "Lost Addresses" file
120,000 - People who identified themselves as Mormons on the 2002 Chilean census
57,000 - Average attendance at sacrament meeting, nationwide
-- Source: Ted Lyon, Brigham Young University specialist on Latin America
See
Потёмкинские деревни, Potyomkinskiye derevniit wrote:"Potemkin village" has also been used to describe the attempts of the government of the Soviet Union to fool foreign visitors. The government would take such visitors, who were often already sympathetic to socialism or Communism, to selected villages, factories, schools, stores, or neighborhoods and present them as if they were typical, rather than exceptional. Given the strict limitations on the movement of foreigners in the USSR, it was often impossible for these visitors to see any other examples.