Democracy index

Here is the list of the world's most and least democratic countries. Myanmar is the 11th least democratic country in the list. You can see the full report and methodology in this pdf document.
[Source]
From the article:

More than half of the world’s population lives in a democracy of some sort, although only some 13% reside in full democracies. Despite the advances in democracy in recent decades, almost 40% of the world’s population still lives under authoritarian rule.