Relative Popularity of Lisp Dialects and Some Trends, According to Google
Following graphs show relative popularity of some Lisp dialects, according to Google, on the base of counting Google searches. I had to play for some time to find suitable graphs; some of the programming languages have names related to other notions as well - and it includes generic Lisp and Scheme, but also popular Java, while C++ contains unacceptable characters. Cobol and Fortran are useful, because C# alone is so popular than it cannot be compared directly with any Lisp dialect. Also, Cobol and Fortran are about as old as Lisp .
Although all these programming languages -- except Clojure and perhaps Picolisp -- appear to lose popularity, note that popularity is relative to the total number of Google searches, so graph is influenced by increasing ratio of non-programmers vs. programmers among Google users. However, the comparison between different programming languages and dialects should be still valid.
These graphs should be "alive" when you click; it doesn't always work, but usually it does.
Make your own conclusions!
If you like this post, maybe you'll like Another difference between C++ and C# or Why you do not use Lisp - the results of the poll .