in reply to
Re^2: Perl is sinking (*****): all time low for Perl
in thread Perl is sinking (TIOBE): all time low for Perl
A good method is to look at job vacancies and see what languages are required and how much the salary is.
Looking at job vacancies gives some languages higher ratings than are probably realistic, due to the verbosity of the language. So, for example, a project that I would probably stick two programmers on if they were building it Perl, when built in Java results in 14 job openings.