The graph shows Underground Station passenger numbers in London.

The graph illustrates the differences in transport from 1974 to 2002 in UK transport. It can be noticed that the graph for pipeline remained steady from 1994 to 2002.
The provided line graph reveals information about the figures for commodities transported in the UK from 1974 until 2002 by using four kinds of transportation. Those transportations were roads, water, rail and pipelines.