Finland rapidly industrialized after World War II, achieving GDP per capita levels comparable to that of Japan or the UK in the beginning of the 1970s. Initially, most of the economic development was based on two broad groups of export-led industries, the "metal industry" (''metalliteollisuus'') and "forest industry" (''metsäteollisuus''). The "metal industry" includes shipbuilding, metalworking, the automotive industry, engineered products such as motors and electronics, and production of metals and alloys including steel, copper and chromium. Many of the world's biggest cruise ships, including MS Freedom of the Seas and the Oasis of the Seas have been built in Finnish shipyards.