RE: The other 62% identify as Muslim.
Actually, if you look at the report here:
http://www.bsa.natcen.ac.uk/media/39293/1_bsa36_religion.pdf
Only 6% identify as Muslim. 52% identify as having NO RELIGION
Like the census where illegal aliens won’t report their citizenship, I’d reckon a whole lot of Muslims didn’t even respond.
I would think at least 10% are Islamic.