Gerais and people of Eastern European, Swiss, Italian, German, Portuguese and older Portuguese-Brazilian heritage from Espírito Santo in the early and mid-20th century, together with people with origins in Northeastern Brazil, in the mid-to-late and late 20th century, as well some in the early 21st century (the latter more directed to peripheries than the city's core). According to an autosomal DNA study from 2009, conducted on a school in the poor suburb of Rio de Janeiro, the "pardos" there were found to be on average about 80% European, and the "whites" (who thought of themselves as "very mixed") were found to carry very little Amerindian and/or African admixtures. The results of the tests of genomic ancestry are quite different from the self made estimates of European ancestry. In general, the test results showed that European ancestry is far more important than the students thought it would be. The "pardos" for example thought of themselves as European, African and Amerindian before the tests, and yet their ancestry on average reached 80% European. Other studies showed similar results Religion Religion in Rio de Janeiro is diverse, with Catholic Christianity being the majority religion. According to data from the Brazilian Institute of Geography and Statistics (IBGE), in 2010 the population of Rio de Janeiro had 3,229,192 Roman Catholics (51.1%), 1,477,021 Protestants (23.4%), 372.851 Spiritists (5.9%), 37,974 Jehovah's Witnesses (0.6%), 75,075 Buddhists (0.2%), 52,213 Umbanda (0.8%), 21,800 Jews (0.3%), 25,743 Brazilian Catholic Apostolic Church (0.4%), 16,776 new eastern religious (0.2%), 28,843 Candomblé (0.4%), 3,853 Mormons (<0.1%), 5,751 Eastern Orthodox Christians (<0.1%), 7,394 spiritualists (0.1%), 964 Muslims (<0.1%), 5,662 esoteric (<0.1%) and 802 Hindus (<0.1%). 858,704 had no religion (13.5%), and 113,530 followed other forms of Christianity (1.8%). Rio de Janeiro has had a rich and influential Catholic tradition. The Roman Catholic Archdiocese of São Sebastião do Rio de Janeiro is the second largest archdiocese in Brazil after São Paulo. The Rio de Janeiro Cathedral was inaugurated in 1979, in the central region of the city. Its installations have a collection of great historical and religious value: the Archdiocesan Museum of Sacred Art and the Archdiocesan Archive. In a Contemporary architecture, it has a conical shape, with 96 meters of internal diameter and capacity to receive up to 20 thousand faithful. The splendor of the building, with straight and sober lines, is due to the changing stained glass windows carved on the walls up to