Years of Democracy

Hi there

Is there anyone who knows how man can find „years of democracy „for countries around the world? I wanna compare age of democracy in different countries. From years of democracy I mean how long one contry under democratic government is.

Why not all at once

I wrote what the Prof. said. I want to compare between some Islamic countries. I think the method of analysis must be a Cross-national comparative. I saw the Prof again and he said you must give the reasons of your hypotheses. That’s right but why he don’t say everything all at once?