Publisher 2K Sports announced today that the latest installment in its NBA 2K basketball series has broken first-week sales records for the franchise. The game sold 49 percent more copies than its previous record-holder, NBA 2K11.

Don't bother asking for specific sales figures, though. The only other stat 2K is providing right now is that NBA 2K13 is more popular internationally than ever before, selling 66 percent more copies overseas than 2K11.

"Our early sales figures are a validation of our ongoing efforts to push this franchise to new heights," says Jason Argent, vice president of marketing for 2K Sports. "We owe it to our great fans to continually improve our title  year in and year out — and that's exactly what we've done with NBA 2K13."

It's a healthy start for what could be an astonishing final figure. After all, the 2011 version sold about 4 million copies.