Houston is the fourth largest city in the nation, with an estimated population of 2.23 million as of January 1, 2007. Houston's population is among the youngest and most diverse in the U.S., with more than ninety spoken languages. The City is expected to experience continued growth through 2010. At the current rate, the City of Houston's population will reach 2.32 million by 2010. Houston's economy has a broad industrial base in the energy, aeronautics, and technology industries, and only New York City is home to more Fortune 500 headquarters. The Port of Houston ranks first in the U.S. in international waterborne tonnage and second in total cargo tonnage. In 2006, the regional Gross Area Product was $325.5 billion, slightly larger than the Gross Domestic Product of Austria, Poland, or Saudi Arabia. If Houston were an independent nation, it would rank as the world's 30th largest economy...