They were followed by the Bahá'í Faith, which had a following of 30,000, then Sikhism, Buddhism, and Zoroastrianism, each back then claiming 20,000 adherents, and a very small community of Jains. There is a Roman Catholic community in Karachi that was established by Goan and Tamil migrants when Karachi's infrastructure was being developed by the British during the colonial administration between World War I and World War II. The influence of atheism is very small, with 1.0% of the population identifying as atheist in 2005. However, the figure rose to 2.0% in 2012 according to Gallup.