Although the United States continues to attract the largest number and fraction of foreign students worldwide, its share of foreign students has decreased in recent years. 55% of PhD students in engineering in the United States are foreign-born (2004).William A. Wulf, President, National Academy of Engineering, Speaking before the 109th US Congress, September 15, 2005 Between 1980 and 2000, the percentage of PhD scientists and engineers employed in the United States who were born abroad increased from 24% to 37%. 45% of PhD physicists working in the United States were foreign-born in 2004. 80% of total post-doctoral chemical and materials engineering in the United States were foreign-born in 1988.'Foreign and Foreign-Born Engineers in the United States: Infusing Talent, Raising Issues', Office of Scientific and Engineering Personnel, 1988. online text
