The take below gives information about the underground railway systems in six cities.Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Given is the table illustrating data related to the underground railway systems in six cities.

At first glance, in terms of size, London system ranks first being 394km, to be more specific, as twice large as the second biggest system situated in Paris, which is 199km. Those systems are followed by the subway systems of Tokyo, Washington DC, Los Angeles and Kyoto, who have relatively 155, 126, 28 and 11km of routes. When it comes to the number of annual passengers, London, Paris and Tokyo systems are significantly ahead of the systems in Washington DC, Kyoto and Los Angeles. (Accordingly 775mln, 1191mln and 1927mln clients vs. 144mln, 45mln and 50mln clients).

It is also visible that, the oldest underground railway system belongs to London (1863), while the youngest one is located on Los Angeles (2001). At that point, Paris (1900), Tokyo (1927), Washington (1976) and Kyoto (1981) systems hold middle positions.

To sum it up, taking all the information into account, it can be concluded that, older subway systems are both larger and busier in comparison with the younger ones.