LKL wrote:
^Clearly not, if the rate has gone down by a third in just a few decades. A few more decades, and they might go through a renaissance and/or reformation.
Unfortunately, I'm not sure it is decreasing at all.
I found this study from 19
88 which list a 55 percent cousin marriage rate, just like the more recent claims (low sample size, but satisfies the CLT).
http://jmg.bmj.com/content/25/3/186.full.pdf
The lower level of cousin marriages may thus be the cause of self-selection (the individuals from Pakistan who end up resettling in Britain), and not continuous exposure to the norms of the Western world. And some sources report an
increasing rate of cousin marriages among younger Pakistanis in Britain

.
This is also consistent with the data from my native country of Denmark which suggests that integration of Muslims into society does not improve in subsequent generations.