The eigenvector of "Why we moved from language X to language Y"

I was reading yet another blog post titled “Why our team moved from to " (I forgot which one) and I started wondering if you can generalize it a bit. Is it possible to generate a N * N contingency table of moving from language X to language Y?

So I wrote a script for it. You can query Google from a script and get the number of search results using a tiny snippet. I tried a few different query strings, like move from <language 1> to <language 2>, switch to <language 2> from <language 1> and a few more ones. In the end you get a nice N * N contingency table of all languages: