Most Populous Countries
The population fact sheet reproduced below shows the world's 17 most populous countries as compiled from the Population Reference Bureaus' "2012 World Population Data Sheet."
I arbitrarily selected all the countries in the world with populations of more than 75 million citizens.
The most rapidly growing of these large countries are all U.N. "developing countries" with gross national income/capita and rates of population increase greater than the world average.