It's pretty random, depending upon how much new content I want to add.
I don't have total numbers across all of the sites. It's somewhere around four million unique visitors a month, with around double that number of page views.
No full-timers employees. Lots of subcontractors.
I don't have a lot of experience with them. They seem like a good niche. elbandelero and Shenron have some sites like that, so they might have more hard data.
My closest site is Expat Intelligence. It does reasonably well. It would be doing a lot better if I had chosen keywords better.

