The official language of the Republic of Congo is French. Other languages are mainly Bantu languages, and the two national languages in the country are Kituba and Lingala, followed by Kongo languages, Téké languages, and more than forty other languages, including languages spoken by Pygmies, which are not Bantu languages. A 2006 study found that French was spoken by 30% of the Congolese population. According to a study by Omar Massoumou, 88% of those in Brazzaville aged over 15 can write simple phrases in French.