<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Greece is a maritime nation by tradition, as shipping is arguably the oldest form of occupation of the Greeks and has been a key element of Greek economic activity since ancient times . Today, shipping is the country's most important industry worth $9 billion in 2015, 4% of the country's GDP . If related businesses are added, the figure jumps to $17 billion or 7.5% of GDP, employs about 192,000 people (4% of the workforce), and shipping receipts are about 1 / 3 of the nation's trade deficit . In 2015, the Greek Merchant Navy controlled the world's largest merchant fleet, in terms of tonnage, with a total DWT of 334,649,089 tons and a fleet of 5,226 Greek - owned vessels, according to Lloyd's List . Greece is also ranked in the top for all kinds of ships, including first for tankers and bulk carriers . </P> <P> Many Greek shipping companies have their headquarters located either in Athens or London and New York City, and are run by Greek traditional shipping families which are notable for their great wealth and influence in the international maritime industry, such as the Onasis, Vardinoyannis, Latsis, Livanos, Angelicoussis, Niarchos, Angelopoulos and Goulandris . The 7th Secretary General (2003 - 2011) of the International Maritime Organization was Efthymios Mitropoulos . </P>

Why are there so many greek shipping magnates
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