A new survey shows that the Great Decline of religion in America continues. Since 2012, the U.S. has about 7.5 million Americans who are no longer active in religion.

Last week, the 2014 General Social Survey (GSS) was released. The GSS is the gold standard for sociological surveys. Funded by the National Science Foundation this multi-million dollar study gives us the most accurate data on American society — including religion.

Here are three measures that show that the percentage of Americans who left religion increased between 2012 and 2014, reaching its highest level in decades. (Next week, I’ll present an the 2014 update of my annual index of religiosity that goes back to the 1940s). An important point to remember as you see the data: each percentage point increase represents a growth of 2.5 million adults.

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