Give a stream of consciousness and then the final answer. Fifty Shades of Grey has topped best-seller lists around the world, selling over 125 million copies worldwide by June 2015. It has been translated into 52 languages, and set a record in the United Kingdom as the fastest-selling paperback of all time. Critical reception of the book, however, has tended towards the negative, with the quality of its prose generally seen as poor. Universal Pictures and Focus Features produced a film adaptation, which was released on 13 February 2015 and also received generally unfavourable reviews.

Based on this passage, how many copies did fifty shades of grey sell?
The relevant information to answer the above question is: Fifty Shades of Grey has topped best-seller lists around the world, selling over 125 million copies worldwide by June 2015.
So, the final answer is over 125 million copies.