Add to this that the Lumia were only sold in a very limited marked for about 1.5 months, and the N9 was sold in a much larger marked (China included) for twice the time.
The main difference is the N9 stopped selling after a very short time, while the Lumia is increasing. With the price drop in some regions, the N9 is hanging in there, at least seemingly, but that wont last for very long, the N9 is a niche device.
Countries that got lumias was on those where Nokia is very strong