Just read this at the spanish Nintendo site. Posting the data just in case it hasn't been posted before. Seems all information has been extrapolated (by a ratio of 0.68) from 2/01/2011 GfK data.
Total install base: more than 2.7 million consoles with a 49.2% market share. (GfK)
December 2010 Wii sales acounted for 48.6% of the whole video game sector. (GfK)
Last year 55.1% of the 2.34 consoles sold where from Nintendo, and 44.7% of the 14.3 million of software sales sold in Spain. (GfK)
Wii Party has sold more than 234,000 in the first three months since launch. (GfK)
3DS sold the first two days in Europe a total of 303,000 units. (Internal Sales NoE)