The table shows data about underground railway systems in six major cities with date opened, kilometres of route and passenger numbers per year in millions.

The given table illustrates the data about subway systems in 6 metropolises around the world including opening dates, the

kilometers

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kilometres

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of paths, and

traveler

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traveller

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numbers annually.

Overall

, It seems that London was the first town to inaugurate its metro in 1863 and

also

with the most distance routes of about 394

kilometers

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kilometres

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. Meanwhile, Paris and Tokyo were placed respectively in the second and third positions with 199 and 155

kilometers

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kilometres

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.

In addition

, Los Angeles was the

last

city that set up its railroad transport.

However

, London transported 775 million individuals yearly albeit the most railroads which was not much compared to Paris and Tokyo with fewer underground instructures. Indeed, there is not any straight correlation between the extent of the rail systems and the number of commuters. Anyway, the highest number of passengers in about 1927 in millions

traveled

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travelled

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back and forth in Tokyo per year. And Paris was the second town with the most passengers about 1191 million people yearly.

Moreover

, Kyoto and Los Angeles had the shortest railroads respectively at 11 and 28

kilometers

, thereby logically Los Angeles with 50, and Kyoto with 45 million travelers had the least number of passengers.