a population of Nauru ranks around 230th in the world by population. Its population density is 478 inhabitants per square kilometre (185 per square mile). The overall life expectancy in Nauru at birth is 59.7 years. The total fertility rate of 3.70 children per mother is one of the highest in the Oceania. Future estimates are indifferent; the Central Intelligence Agency's World Factbook estimates the population of Nauru is decreasing to approximately 9.4 thousand in 2014,[4] the Nauru Bureau of Statistics estimate the population will increase to 20 thousand in 2038,[5] and the United Nations projects the population will stay around ten thousand in the 2020s.[6]