题目：The table below gives information about the underground railway systems in six cities.
The data given by the table is about the details regarding the underground railway systems in six cities.
London has the oldest underground railway system among the six cities. It was opened in 1863. Paris is the second oldest, in which it was opened in 1900. It was followed by Tokyo, Washington DC and Kyoto. Los Angeles has the newest underground railway system, and was only opened in 2001. In terms of the size, Lodon has the longest route, 394 kms, which is twice as large as the system in Paris. In contrast, Kyoto has the smallest one, only 11 kms, which is 30 times less than that of London.
Interestingly, Tokyo, which only has 155 kilometers of route, serves the most passengers per year, at 1927 million passengers. The system in Paris has the second greatest number of passengers, at 1191 million passengers per year. The smallest underground railway system, Kyoto, serves the smallest number of passengers per year as predicted.
In conclusion, the underground railway systems in different cities vary a lot in the size of the system, the number of passengers served per year and in the age of the system.
