The top three were Andy Warhol, Jean-Michel Basquiat and Gerhard Richter, while Gerhard Richter, Pablo Picasso and Andy Warhol had the most auction sales overall in 2012.
With more than 1, 100 works by 185 artists, the collection focuses on 1960s contemporary art and includes a number of works from Andy Warhol, Roy Lichtenstein, Chuck Close and Gerhard Richter.