muslims marry their cousins and if its an arranged marriage 99% of the time it will be 2 cousins marrying each other. the reason why the figure in the UK is over 50% and not 100% is because some pakistani muslims are more modern and dont want an arranged marriage, therefore they bring the % down, otherwise it would be a lot higher.
Holy crap man, myself, my family and everyone I know must be in the 1% group, we SO need to play the lottery for beating such odds.
I suggest you disown whoever pulled this figure out from their bunghole.
What I have seen and heard from various conversations is that the bulk of these "cousin" based marriages are due to money or personality/looks issues or where the families in question are too closed or are too poor to be able to appeal to an outside family who are looking for a suitable suitor for their son or daughter.
Sensible modern day Asian parents are extremely picky on who their kids decide to marry, they go beyond just finding out about the partner in question if their child brings someone home one day for example they gather what they call "bio data" where they do a complete (or as complete as possible) historical check on his or her family from medical to financial and education, they should not be related by blood and they must have the the assets (if male) to be able to support their daughter.
It's like a modern version of how you see marriages kick off in movies set in the pre-industrial revolution times where boy x and girl y meet at function z and both families then spend ages checking each other out (...so to speak) and then arranging all the big days.
The term "arranged" is so misinterpreted (with no thanks to bad media) that people instantly think of it as 2 people being forced into marriage to whoever their family wants them to marry and that certainly isn't the case to anyone I personally know in this country or any of the other 3 that my close friends family span!
Sure you do hear about it but that doesn't mean it happens to everyone.
There's nothing in religion that says you have to marry your cousin either, it's just people being dim.