The economy of Asia is dominated by Japan, China, Russia and India, four of the World's major powerhouses which account for one-fifth of the World's total turnover combined. Japan slightly edges China for the title of highest GDP on the Asian continent, and with a yearly GDP of almost 5 trillion dollars Japan accounts for about 8% of our planet's total. The island nation - made up from almost 7,000 different islands - is second-only on the GDP rich-list to the United States, and as the World's 4th largest exporter, the Japanese have been able to finance a society which currently boasts the highest life expectancy on Earth, along with the third lowest infant mortality rate on the planet too.