Saudi Arabians (Arabic: سعوديون Suʿūdiyyūn), or Saudis are a nation composed mainly of various regional ethnic groups who are native to the Arabian Peninsula including Hejazis, Najdis, Hassawis, Southern Arabs and others including non-Arabs, who share a common general Saudi culture and a Saudi nationality. Saudis speak one of the accents and dialects of the Peninsular Arabic, including the Hejazi, Najdi, Gulf and Southern Arabic dialects (which includes Bareqi), as a mother tongue. According to the 2010 census, Saudi nationals represented approximately 19,335,377 making up 74. 1% of the total population. Saudi Arabia is a state governed by absolute monarchy, with the king as its head of state.