Well, it certainly wasn't just marketing in 2013. The Xbox One had a bigger launch than any console in prior history.
You're looking at the "hourly" chart, which is not actually the sales in any particular hour. It's a predictive trend thing, so is extremely unreliable for ranking and predictions. However, the thread is about the yearly ranking, which is more steady (though not faultless by any means). There, One X is at 66, Pro at 90.
Found it. Disregard.