[fwdude]

But I would ask, at what rate is it declining?

Here's one source, reported by Reuters, of all sources:

http://www.reuters.com/article/2015/01/17/us-usa-boyscouts-idUSKBN0KQ05O20150117

A 7.4% decline in 2014 after the new homo police when into effect is pretty significant.

[the OlLine Rebel]

But was this part of the trend you mentioned before? Of steady decline over many years?

Your URL is not linked and I cannot easily copy with my iPad.