Most Haitians practice both Vodou and Roman Catholicism. An often used joke about Haiti holds that the island's population is 85% Roman Catholic, 15% Protestant, and 100% Vodou. In the mid-twentieth century Métraux noted that Vodou was practiced by the majority of peasants and urban proletariat in Haiti. An estimated 80% of Haitians practice Vodou; Desmangles put the number of Haitian practitioners at six million. Not all take part in the religion at all times, but many will turn to the assistance of Vodou priests and priestesses when in times of need.