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

The table illustrates data

of

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from

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six important cities over the world, which are

London

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, Paris,

Tokyo

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,Washington DC ,Kyoto and Los Angeles, which

are providing

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provide

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undergroud transportaion

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underground transportation

.

This

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data is

eing

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being

compared through three factors which are the open date of the

system

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, the

distance

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and the

number

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of passengers who are visiting the

system

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yearly. It is clear from the table that there

fluctuations

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are fluctuations

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in the

number

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of

visitors

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, the

traveled

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travelled

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distance

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and the

numbe

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number

of years of the

system

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's

existance

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existence

. There is a

noticable

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noticeable

difference between the

Tokyo

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system

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and

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London

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the London

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system

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.

London

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system

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is more ancient than

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Tokyo

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the Tokyo

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system

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which were built in the

year

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years

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1863 and 1927 respectively.

However

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,

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Tokyo

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Tokyo's

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underground

railways

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are more used by their passengers which have almost 1927

millions

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million

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per year

in contrast

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to

London

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's

railways

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which have nearly 775

millions

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million

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passengers yearly.

The

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A

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closer examination of the figures for

London

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's underground

system

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reveals the longest

distance

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at

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of at

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least 394

kilometers

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kilometres

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.

On the other hand

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, Kyoto's underground

systems

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have the shortest

distance

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which is around 11 kilometers of route.

Also

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, they have the lowest

number

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of

visitors

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yearly in comparison to

other

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the other

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five mentioned

systems

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.

However

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, Los

Aneles's

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Angeles's

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railways

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railway's

railways'

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systems

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are the newest

system

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which

were

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was

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built in 2001 and

occupy

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occupies

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a rank of two in the lowest

number

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of

visitors

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after Kyoto's

system

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which are about 50 and 45

millions

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million

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visitors

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per twelve months respectively.

This

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table shows that there are some underground

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railways

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railway

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systems

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that need to be extended

due to

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the large

number

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of

visitors

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they have despite they are very old

systems

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.