Format
A list with 6 components, namely "name", "country.etc", "pop", "lat",
"long", and "capital", containing the city name, the state abbreviation,
approximate population (as at January 2006), latitude, longitude and
capital status indication (0 for non-capital, 1 for capital, 2 for state
capital.NOTE
Some of the city names may be out of date. Please send
any corrections to the package maintainer.