With 6 million followers,Jainism is the smallest among the major world religions. Jains live throughout India, with the largest populations concentrated in the states of Maharashtra, Madhya Pradesh, Rajasthan and Gujarat. Karnataka and Tamil Nadu also have relatively large Jain populations. Outside India, large Jain communities can be found in the United States, the United Kingdom, Canada, and Kenya. Jainism is a fairly strong faith in the United States, with several dozen Jain temples having been built there, primarily by the Gujarati community. American Jainism accommodates all the sects. Small Jain communities also exist in Nepal, Sri Lanka, South Africa, Japan, Singapore, Malaysia, Australia, Fiji, and Suriname. In Belgium, the very successful Indian diamond community in Antwerp, almost all of whom are Jain, opened the largest Jain temple outside India in 2010, to strengthen Jain values in and across Western Europe. For long periods of time, Jainism was widely adopted in the Indian subcontinent. The religion has been in decline since the 8th century AD due to the growth of, and oppression by other religions. Jains, according to the 2001 census, have the highest degree of literacy of any religious community in India (94.1 per cent),and their manuscript libraries are the oldest in the country.