French and English are official languages, a heritage of Cameroon's colonial past as a colony of both France and the United Kingdom from 1916 to 1960. Eight out of the ten regions of Cameroon are primarily francophone, representing 83% of the country's population, and two are anglophone, representing 17%. The anglophone proportion of the country is in constant regression, having decreased from 21% in 1976 to 20% in 1987 and to 17% in 2005, and is estimated at 16% in 2015 (whose fourth census should take place in 2015).