Latest Sony portable eclipses Nintendo systems in Europe, struggles in US and Japan

With the PS Vita now competing with Nintendo’s 3DS on the world stage, how are these systems faring against each other and the rest of the portable consoles on the market?
An inforgraphic by research firm Statista, as reported by Venturebeat, compares first week sales between Nintendo’s portable systems and Sony’s Vita and PSP.

Vita comes out bottom compared to its rivals in Japan and the US, but comes out on top over Nintendo’s DS and 3DS first week sales in Europe, but is eclipsed by impressive PSP sales of 570,000.
Both the 3DS and Vita have some way to go however to beat the DS’ success, with global lifetime sales currently at 152 million and still rising.