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% of the population identifying themselves as Catholic. 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.