I don't see what that's supposed to illustrate...
You wanted a citation. This forum is where I got the data from. The archives go back that far. All the evidence is here.
If you're asking me to provide the statistical analysis and select pieces of evidence for you, then you probably need to go and read some more about what "Citation needed" means.
Or y'know, actually say that's what you want instead of using some smug Wikipedia reference that you don't actually understand.