Among every four humans in the world, one of them is Muslim. Muslims have increased by over 235 percent in the last fifty years up to nearly 1.6 billion. By comparison, Christians have increased by only 47 percent, Hinduism, 117 percent, and Buddhism by 63 percent. Islam is the second largest religious group in France, Great Britain and USA (Muslims in USA are 10 millions and Jews are 6 millions).
The number of the total population has been taken from The CIA World's Facts Book
