The former currency of France before it joined the European Monetary Union and adopted the euro. Many West African countries also use their own version of the franc, including Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Republic of Congo, Chad, Djibouti, Equatorial Guinea (its franc is comprised of centimos), Gabon, Guinea, Guinea-Bissau, Ivory Coast, Madagascar, Mali, Niger, Rwanda, Senegal, and Togo. Martinique and St. Pierre also use the franc. The franc is comprised of 100 centimes. See also Swiss franc.