 On the islands of Tahiti and Moorea, the number of people age 15 and older who reported that the language they spoke the most at home was Mangarevan rose from 50 at the 2007 census to 53 at the 2017 census.Speakers have some bilingualism in Tahitian, in which there is a 60% lexical similarity, and usually with French, as well.It is a member of the Marquesic subgroup, and as such is closely related to Hawaiian and Marquesan.