I know this is a place for discussing about dSLR but let me post it here.
Japan is abnormal as some of you have been firmly and continuously believing. Here's another example.
I'm of the opinion that the nuke plant explosion caused this.
What? No? Even before that? --- I would not deny it.
The shipment of "non-reflex" cameras occupies more than half
(50.3%) of all interchangeable lens cameras in the 4th Q
of 2011, while in case of other areas it's only a quater (24.0%). --- in terms of units (see the 1st chart attached)
The 2nd chart shows the same but annalyzed regional-wise. For instance, in Europe non-reflex has 18.7% share and in North America, 16.4%. World wide share was 22.7% in the second half
Incidentally CIPA, an organization collecting statistics of camera shipment, says they intend to use the word "non-reflex" to cover so-called mirror-less models, compact system cameras, range finder cameras when lens is interchangeable and interchangeable "unit" cameras such as a Ricoh model.
This is for their statistics purpose only and of course does not force manufacutures to follow. They continuously use their own naming such as " micro single lens", " mirror-less single lens" ... whatever.
CIPA estimates that camera shipment this year will increase by 1.6% (117.3 mil. units including 99 mil. non-interchangeable lens cameras = so called comapact cameras)
The compact cameras will decline by 0.8% compared to the previoius year. The interchangeable-lens camera
is estimated to increase by 16.6% and reaches to 18.3 mil. units.
P.S. They use wording such as shipment "to Japan" and "to other regions" as most cameras are manufactured outside of Japan. Japan is an importer, of course.