"The countries with the highest prison population rate – that is, the number of prisoners per 100,000 of the national population – are Seychelles (799 per 100,000), followed by the United States (698), St. Kitts & Nevis (607), Turkmenistan (583), U.S. Virgin Islands (542), Cuba (510), El Salvador (492), Guam – U.S.A. (469), Thailand (461), Belize (449), Russian Federation (445), Rwanda (434)
and British Virgin Islands (425).
"However, more than half of all countries and territories (55%) have rates below 150 per 100,000.
"The world prison population rate, based on United Nations estimates of national population levels, is 144 per 100,000."