But then there is a clear contradiction to the numbers from your chart. There PS2 installed base is 90M in US+EU at 2012 and with PS2 reaching 46.5M in US eventually there is no shot looking at the values in the table and the chart trend that PS2 reached 48M in Europe at any point. The only explanation is that, in the chart, Europe is not actually Europe (as in, it is only a certain subset of markets from Europe).
There is another contradiction with this 48M number by 2008 of PS2:
@Astral_lion02 sometime ago came with a source directly from Nintendo where 40M DS had been reached in Europe in less than 5 years (I guess sometime in 2010, if my memory is still good). If I recall correctly, it was also stated that DS was the best selling console in Europe and
@Astral_lion02 used that article to imply that VGChartz numbers from Europe had to be completely wrong (your estimate above of 55M would mean VGChartz is not that far off). Again this might be explained by different definitions of what constitutes Europe but in this case it is a little stranger.