The population of the country is nearly 50%, by some estimates.
"Some families live in comfort, even luxury, behind high walls, but the streets are filled with trash, unlit at night and often unpaved outside the main business district. An influx of uneducated villagers living in shantytowns or illegal construction strains the electrical grid and water supply, raises the price of housing and introduces a de-civilizing element. Even cities as advanced as Istanbul are experiencing a similar re-population, and this will likely continue over the next 20 years.
Today, Afghan cities have almost no public amenities."
