 In the social sciences, there were 37.7% A grades in 2006–09, down from 43.3% in 2001–04.In the natural sciences, there were 35.6% A grades in 2006–09, compared to 37.2% in 2001–04.In engineering, the figures were 41.7% A's in 2006–09, down from 50.2% in 2001–04.