This map shows Number of jailed population per 100,000 people rank in United States Peace Index (USPI) 2011.
Number of jailed population per 100,000 people rank ...
This map shows U.S. Peace Index: Changes in Peacefulness 1991 - 2009.
First-ever ranking of peace in the U.S. shows the nation has become more peaceful since 19 ...
This chart shows historical Freedom in the World - 1972 onwards.
What is Freedom in the World? and How is the Freedom of the World calculated?
Note:
1982: T ...