> For example, many commercial use of languages are not public. As a
> example, Wolfram Research, the maker of Mathematica, sells more
> Mathematica than any lisp companies combined.
> This can be gathered from company size and financial records. However,
> if you go by your methods, such as polling stats from linux distros,
> or other means of checking stats among open source communities, you
> won't find any indication of this.