Is there anywhere where i can find out how much eminems "relapse" has sold?

i just want to know how well his albums doing, i've done my part and i've bought the album + i just hope all other eminem stans hold out and dont illegally download the album but help him go the extra mile this time around. Admittedly, relapse is nothing on the SSLP, the MMLP and The Eminem Show .. but it is 10000x better than the crappy rap that's out there now.