Reefers 2010
According to the CIA World Factbook there are about 38,000 registered merchant ships in the world in 2010 with about 920 of them being designed as refrigerated cargo ships. Because of the proliferation of self contained refrigerated container systems on container ships, there are many more ships than those designed for only refrigerated cargo that are also carrying some refrigerated cargo. Because of the way ships are registered in the world the country with the most registered merchant vessels, Panama, with 6,739 vessels registered is also has the one with most registered refrigerated cargo ships—212 (as of 2010). The next largest country with the second most ships Liberia with 2,512 merchant vessels has 109 refrigerated cargo ships. For other countries see the CIA World Factbook.
See also: List of merchant marine capacity by countryRead more about this topic: Reefer Ship