Complex sentence: Other religious groups operated freely and include Roman Catholics, Orthodox, Jews, Hindus, Buddhists and Sikhs were present in very small numbers, together comprising less than 1 percent of the population.
Split into simpler sentences: Other religious groups operated freely and include Roman Catholics. Buddhists, Jews, Orthodox, Sikhs, and Hindus were present in very small numbers, together comprising less than 1 percent of the population.