Note that the numbers for English are from 2006, the numbers for Mandarin (960 Million) are from 2010 and they lump together all the different (not mutually intelligible) dialects of Mandarin.
Noted, but it doesn't detract from my point about C. The number of Mandarin speakers was only to refute the OP's assertion that an anglocentric view of the world biases the opinion of how popular English is as a world language; this is not the case, it is genuinely popular.