that many dioceses have been performing same-sex marriages, including the dioceses of Toronto, Ottawa, British Columbia and others. Kilty added that many dioceses would continue to perform such services since there is no specific prohibition by the Church. In July 2003, the hierarchy of the Catholic Church in Canada protested the Chrétien government's plans to include same-sex couples in civil marriage. This was significant because Catholicism has a larger number of adherents in Canada than any other religion or denomination, with 43.6 percent of the population identifying themselves as Catholic in 2005. The church criticisms were accompanied by Vatican claims that Catholic politicians should vote according to their personal beliefs rather than the policy of the government. Amid a subsequent backlash in opinion, the Church remained remarkably quiet on the subject, at least in public, until late 2004, when two Catholic bishops clearly stated their opposition to same-sex marriage. The Bishop of Calgary, Frederick Henry, in a pastoral letter urged Catholics to fight against the legalization of same-sex marriage, calling homosexual behaviour "an evil act". Bishop Henry's letter also seemed to urge the outlawing of homosexual acts, saying, "Since homosexuality, adultery, prostitution and pornography undermine the foundations of the family, the basis of society, then the State must use its coercive power to proscribe or curtail them in the interests of the common good." Two human rights complaints were filed against Henry soon afterward under the Alberta Human Rights Act, one of which was dropped at the conciliation stage. The Hutterite Brethren spoke out against same-sex marriage in a letter written to Prime Minister Martin in February 2005. The group has historically not involved themselves with politics. The Humanist Association of Canada, which endorses a non-theistic, non-religious ethical philosophy to life and full separation of church and state, has been supportive of same-sex marriage. Local affiliate groups of the Humanist Association offer officiancy services across Canada. Representatives of the World Sikh Organization testified before the Senate Committee on Legal and Constitutional Affairs in favour of the Civil Marriage Act. Public opinion A 1996 Angus Reid Institute/Southam News opinion poll, conducted across Canada, found that 49 percent of Canadians supported same-sex marriage, while 47 percent were opposed. Support was highest in Quebec (58 percent) and among 18–34-year-olds (67 percent), and lowest in Alberta (38 percent) and people over the age of 54 (25 percent). In 1999, the group found support at