I want to raise a couple of issues about the american data and get our sponse. One is demographics have changed dramatically over that time period. We also have a very poor education system before college, which i think as handicapped o low income people from low income households were almost out a time. So when i look at your data, the trend, although look, it looks quite frightening because of the increasing share, some of that is a statistical art effect. Do you agree? No, i disagreewit with this statement.