My last job, about 80% of the systems were Solaris, 15% AIX and 5% Linux/Windows. Granted, this was a large financial institution. The place prior to that was

My last job, about 80% of the systems were Solaris, 15% AIX and 5% Linux/Windows. Granted, this was a large financial institution. The place prior to that was about 90% OpenBSD, 10% Arch Linux. A startup. And before that, probably about 25% Linux, 40% Windows, and the rest were a good balance of AIX and Solaris, at a community college. For what it's worth, the college was using Solaris for students to play on, and Sun curriculum for "UNIX" courses, with the thought that students could go get Sun Certified when they're done with the class; and if they did so, wouldn't need to take the final exam. I'm not sure that'll be an option in the future.