Interesting graph 360 over PS3

[forevercloud3000]

Where did you get this graph? I think It might be flawed seeing as the PS3 started outselling the 360 at the beginning of the Christmas Season, yeet that graph shows the drop did not start till after it. That cant be right?@!?

Also the PS3 has accumilated at least a 1million lead over that time period so the graph should AT LEAST cave decreased a whole million in gap.