The demographic characteristics of Cuba are known through census which have been conducted and analyzed by different bureaus since 1774. The National Office of Statistics of Cuba (ONE) since 1953. The most recent census was conducted in September 2012. The population of Cuba at the 2012 census was 11.2 million. The population density is 100.7 inhabitants per square kilometer, and the overall life expectancy in Cuba is 78.0 years. The population has always increased from one census to the next, with the exception of the 2012 census, when the count decreased by 10,000. Since 1740, Cuba's birth rate has surpassed its death rate; the natural growth rate of the country is positive. Cuba is in the fourth stage of demographic transition. In terms of age structure, the population is dominated (71.1%) by the 15- to 64-year-old segment. The median age of the population is 41.8, making it the oldest in the Americas, and the gender ratio of the total population is 0.99 males per female. Population According to the 2002 census, Cuba's population was 11,177,743, whereas the 2012 census numbered the population at 11,167,325. The drop between the 2002 and 2012 censuses was the first drop in Cuba's population since Cuba's war of independence. This drop was due to low fertility and emigration, as during this time (fiscal years 2003 to 2012), 332,028 Cubans received legal permanent residence in the United States. Consequently, Cuba is also the oldest country in the Americas in terms of median age, due to a high amount of emigration by younger Cubans to the U.S. In the last few years before the end of the wet feet, dry feet policy on January 12, 2017, the number of Cubans moving to the United States significantly outnumbered the natural increase during those years. Population by region (2015) Vital statistics Structure of the population (2012) Structure of the population (01.07.2013) (Estimates): Racial groups Ancestral origins According to the previous censuses, the Chinese were counted as white. The ancestry of Cubans comes from many sources: Spanish During the 18th, 19th and early part of the 20th century, large waves of Spanish immigrants from Canary Islands, Catalonia, Andalusia, Galicia, and Asturias emigrated to Cuba. Between 1820 and 1898, a total of 508,455 people left Spain, and more than 750,000 Spanish immigrants left for Cuba between 1899 and 1930, with many returning to Spain. There are 139,851 Spanish citizens living in