I cant help you here, but Id be interested to find out as well. The only thing I remember in regards to amiga software sales was reading in an issue of C+VG (Computer And Video Games magazine) years ago, and them making mention of Worms (or maybe Directors Cut, cant recall) for the Amiga being the biggest selling game over the Christmas period. They specifically mentioned it as this was when the Amiga had been "dying" for some time already and it was unexpected.