Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The size of the circle is proportional to the total number of publications of that country per capita during 2010. Countries names are given with ISO abbreviations.
