The examination is considered to be very difficult: it is typically attempted by students specializing in mathematics, but the median score is usually zero or one point out of 120 possible, and there have been only four perfect scores as of 2010.
考试被认为是非常困难的: 通常是由专门学习数学的学生尝试的, 但中位分数通常是零或 120个可能的 10 分, 截至 2010年, 只有4个完美分数。