The provided table presents data on six underground railway systems across various cities, detailing their opening dates, route lengths in kilometres, and annual passenger numbers in millions. Overall, it is evident that London boasts the oldest and most extensive railway network, yet Tokyo’s system, despite being considerably newer and shorter, serves the highest number of passengers annually. Generally, the older systems tend to have more extensive routes and higher passenger volumes compared to their more recently established counterparts. London's underground system, inaugurated in 1863, is by far the oldest and most expansive, covering 394 kilometres. Following this, Paris opened its network in 1900, which now spans 199 kilometres. Tokyo's system, established in 1927, has a route length of 155 kilometres, while Washington DC, opening in 1976, features 126 kilometres. In stark contrast, Kyoto (1981) and Los Angeles (2001) possess the newest and smallest systems, with routes of just 11 and 28 kilometres respectively. Regarding annual passenger figures, Tokyo leads significantly with 1927 million riders, despite its route being shorter than both London and Paris. Paris occupies the second position, accommodating 1191 million passengers each year, closely followed by London with 775 million. The newer systems handle considerably fewer commuters; Washington DC serves 144 million, while Kyoto and Los Angeles record the lowest numbers, with 45 million and 50 million passengers per year, respectively. This clearly illustrates a trend where older, more established systems generally carry more passengers, with Tokyo being a notable exception that outperforms London and Paris in passenger volume despite its relatively moderate route length.
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