 The five most populous federal entities in 2005 were the State of Mexico (14.4 million), Mexico City (8.7 million), Veracruz (7.1 million), Jalisco (6.7 million) and Puebla (5.4 million), which collectively contain 40.7% of the national population.Mexico City, being coextensive with the Mexico City, is the most populous city in the country, while Greater Mexico City, that includes the adjacent municipalities that comprise a metropolitan area, is estimated to be the second most populous in the world (after Tokyo), according to the UN Urbanization Report.Intense population growth in the northern states, especially along the US-Mexican border, changed the country's demographic profile in the second half of the 20th century, as the 1967 US-Mexico maquiladora agreement through which all products manufactured in the border cities could be imported duty-free to the US.