Are we becoming less religious?

First, look at this chart (it's from here):

In general, then, richer nations -- UK, Germany, Japan, Australia -- tend to be less religious, but the U.S. actually seems to be far more religious than other nations among its wealth-generating peers.

Now consider this, from 2013 on NPR. It's an interview about the rise of the "nones," meaning people with no r…