What is the distribution of freight in world shipping?

The distribution of goods in world shipping is very uneven, and there is a big gap between the oceans in terms of ports, cargo turnover and cargo throughput. The freight situation of various oceans is briefly described as follows: the Atlantic Ocean is almost surrounded by the most economically developed areas on all continents, and important countries in Europe, eastern North America, Latin America such as Mexico, Venezuela, Brazil, Argentina, the Gulf of Guinea coast in Africa, and some countries with higher economic development levels in North Africa and the Middle East all face the Atlantic Ocean. The Atlantic route opened early. Before the geographical discovery, the World Trade Center was in the Mediterranean and later moved to the Atlantic Ocean. Up to now, it is still the busiest ocean in the world, especially the North Atlantic, which is the busiest sea area connecting economically developed areas-Western Europe and North America. Ocean now has 3/4 ports, 2/3 cargo turnover and 3/5 cargo throughput in the world. World-famous ports are mainly concentrated in the Atlantic coast, such as Leningrad, Hamburg, Rotterdam, Antwerp, le havre, London, Marseille, Genoa, Odessa, new york, Philadelphia, Baltimore, Norfolk, Tampa, New Orleans, baton rouge and Houston in the North Atlantic. There are Santos, Rio de Janeiro and Buenos Aires in the South Atlantic, all of which are world-famous ports. The Pacific Ocean is the largest and deepest ocean in the world, but the economic level around it is not as high as that around the Atlantic Ocean. The Cordillera Mountains stand tall in the western United States, limiting the connection between the Pacific Ocean and the continental United States. The major economic centers of Canada, the United States and Latin America all face away from the Pacific Ocean, and the economically developed areas of Russia are also far from the ocean. Although Australia and New Zealand are economically developed countries, they account for a small proportion in the world economy. Only Japan is the only economically developed country facing the Pacific Ocean. The above situation has a great influence on the shipping of the Pacific Ocean, which occupies a much lower position in international trade than the Atlantic Ocean. At present, it only has 1/6 of the world ports, 3/ 10 of the cargo turnover (less than 1/2 of the Atlantic Ocean) and 1/4 of the cargo throughput. The famous ports on the west coast are Chiba, Kawasaki, Yokohama, Nagoya, Osaka, Kobe, Kitakyushu, Shanghai and Singapore. There are Los Angeles muscles and Seattle on the east coast. The Indian Ocean's maritime status is lower than the above two oceans, because its area is very small, only 2/5 of that of the Pacific Ocean. More importantly, all the neighboring countries except Australia are economically backward developing countries. The Indian Ocean has only110 port and freight turnover and 1/6 cargo throughput in the world. Oil in the Middle East plays a prominent role in the current marine economic activities. The Gulf is not only rich in submarine oil, but also oil is the main means of transportation in the ocean. The huge amount of oil in the Gulf region is transported from the Indian Ocean to Western Europe, North America and the Far East, Oceania and other places in three ways. In addition to oil, ships passing through the Indian Ocean mainly transport agricultural products and minerals along the Pacific coast. The Arctic Ocean is the coldest ocean in the world, covered with ice sheets that don't melt all year round. Although some ice and snow melted in the short summer near the mainland, it was still covered by floating ice, making it difficult for ships to pass. Affected by the North Atlantic warm current, only a part of the Barents Sea is navigable all year round. The Arctic Ocean route opened by the former Soviet Union in 1930s can only be opened by icebreakers in summer, except for the perennial navigation to the west of Yenisei River. Therefore, the shipping in the Arctic Ocean is of little significance, and the freight volume is extremely limited.