Taiwan, which was No. 6 in the survey for the 2008-09 academic year, moved up a notch in the new annual rankings. It sent nearly 27,000 students to America for 2009-10, which is actually a 4.9 percent decrease from the year before. In fact, its numbers have been declining pretty steadily since its peak in the 1993-94 school year, when nearly 38,000 students came from here. About 55 percent of Taiwan’s students in the US are at the graduate level, and almost 25 percent are undergraduate students (with the remaining percentage in “other” categories).