Context: According to a 2011 Pew Research Center survey, there were 2.2 billion Christians around the world in 2010, up from about 600 million in 1910. By 2050, the Christian population is expected to exceed 3 billion. According to a 2012 Pew Research Center survey Christianity will remain the world's largest religion in 2050, if current trends continue.

Question: According to one report, how many Christians were in the world in 2010?
Answer: 2.2 billion

Question: How many Christians were in the world in 1910?
Answer: 600 million

Question: If growth continues as it has, what religion will be the largest in the world by 2050?
Answer: Christianity

Question: Which survey conducted in 2012, concluded there were about 2.2 billion Christians worldwide?
Answer: Unanswerable

Question: How many Pew Research Centers worldwide did the Christian survey conclude there were?
Answer: Unanswerable

Question: Which religion will remain the smallest through 2050 assuming current trends continue?
Answer: Unanswerable

Question: Through which year will Christianity remain the worlds smallest religion?
Answer: Unanswerable

Question: In which year did the Pew Research Center conclude that Christianity would remain an insignificant religion through 2050?
Answer: Unanswerable