That information is misleading. It is not the same to work for a small company/startup one rather to land a job on corporate business. Stack Overflow is misleading and it is biased however it is far from the real world.
In my country:
ruby: 38 jobs.
Freelancer (online jobs)
ruby: 20 jobs.
C# : 225 jobs.
Practically, 1/10 of the jobs of c#.
But, you could say "but X company uses Ruby...!". well, that's not the trend. It's cheating to consider an exception while ignoring the trend.
I need 1 (one) job at the moment. Just make the best companies in the country to headhunt you, and feel free to choose the language by being most pleasant.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.