Article: A series of new editors-in-chief oversaw the company during another slow time for the industry. Once again, Marvel attempted to diversify, and with the updating of the Comics Code achieved moderate to strong success with titles themed to horror (The Tomb of Dracula), martial arts, (Shang-Chi: Master of Kung Fu), sword-and-sorcery (Conan the Barbarian, Red Sonja), satire (Howard the Duck) and science fiction (2001: A Space Odyssey, "Killraven" in Amazing Adventures, Battlestar Galactica, Star Trek, and, late in the decade, the long-running Star Wars series). Some of these were published in larger-format black and white magazines, under its Curtis Magazines imprint. Marvel was able to capitalize on its successful superhero comics of the previous decade by acquiring a new newsstand distributor and greatly expanding its comics line. Marvel pulled ahead of rival DC Comics in 1972, during a time when the price and format of the standard newsstand comic were in flux. Goodman increased the price and size of Marvel's November 1971 cover-dated comics from 15 cents for 36 pages total to 25 cents for 52 pages. DC followed suit, but Marvel the following month dropped its comics to 20 cents for 36 pages, offering a lower-priced product with a higher distributor discount.

Now answer this question: In what year did Marvel's sales overtake rival DC?
1972