This is the pattern with Muslim immigration according to Dr. Peter Hammond. With respect to the percentage of Muslims compared to the population as a whole, he described it this way:
When politically correct, tolerant, and culturally diverse societies agree to Muslim demands for their religious privileges, some of the other components tend to creep in as well. Here’s how it works. As long as the Muslim population remains around or under 2% in any given country, they will be for the most part be regarded as a peace-loving minority, and not as a threat to other citizens. At 2% to 5%, they begin to proselytize from other ethnic minorities and disaffected groups, often with major recruiting from the jails and among street gangs.
From 5% on, they exercise an inordinate influence in proportion to their percentage of the population. For example, they will push for the introduction of halal (clean by Islamic standards) food, thereby securing food preparation jobs for Muslims. They will increase pressure on supermarket chains to feature halal on their shelves — along with threats for failure to comply.
At this point, they will work to get the ruling government to allow them to rule themselves (within their ghettos) under Sharia, the Islamic Law. The ultimate goal of Islamists is to establish Sharia law over the entire world.
When Muslims approach 10% of the population, they tend to increase lawlessness as a means of complaint about their conditions. In Paris , we are already seeing car-burnings. Any non-Muslim action offends Islam, and results in uprisings and threats, such as in Amsterdam , with opposition to Mohammed cartoons and films about Islam. Such tensions are seen daily, particularly in Muslim sections.
After reaching 20%, nations can expect hair-trigger rioting, jihad militia formations, sporadic killings, and the burnings of Christian churches and Jewish synagogues.
At 40%, nations experience widespread massacres, chronic terror attacks, and ongoing militia warfare, such as in:
From 60%, nations experience unfettered persecution of non-believers of all other religions (including non-conforming Muslims), sporadic ethnic cleansing (genocide), use of Sharia Law as a weapon, and Jizya, the tax placed on infidels.
After 80%, expect daily intimidation and violent jihad, some State-run ethnic cleansing, and even some genocide, as these nations drive out the infidels, and move toward 100% Muslim.
100% will usher in the peace of ‘Dar-es-Salaam’ — the Islamic House of Peace. Here there’s supposed to be peace, because everybody is a Muslim, the Madrasses are the only schools, and the Koran is the only word.
The list doesn't work perfectly, of course, because other factors may come into play. But it does work in general.
Sharia is practiced in some of these communities whether sanctioned by the government or not. This is 'moderate' Islam! But there is nothing moderate about Sharia, and if we don't stop its spread, we will all be under Sharia within a couple generations.