ah, here it is:
At 2% and 3% they begin to proselytize from other ethnic minorities and disaffected groups with major recruiting from the jails and among street gangs:
Denmark — Muslim 2%
Germany — Muslim 3.7%
United Kingdom — Muslim 2.7%
Spain — Muslim 4%
Thailand — Muslim 4.6%
From your post “United Kingdom — Muslim 2.7%”
But with immigration and a much higher birth rate among
Muslims compared to others in the UK, that percentage will increase fairly quickly. Also, I suspect the Muslim population in the UK is on average much younger than the non-Muslim population. So again another factor that could cause that percentage to increase fairly quickly, say 10% in 10 years or so.