The line graph depicts the number of products transported in Britain from 1974 to 2002 by four various types of transport.
      
Overall
, the road was the most demanding mode of transport, Linking Words
while
 the pipeline was the lowest one among them.
      It can be seen that roads had a growing trend in many parts of the graph over Linking Words
this
 period which  started from almost 70 Linking Words
million
 Use synonyms
tonnes
 in 1974 until it reached just under 100 Use synonyms
million
 Use synonyms
tonnes
 in 2002. Use synonyms
On the other hand
, the line of pipelines began with around 5 Linking Words
million
 Use synonyms
tonnes
 in 1974 and continued its increase to place  just above 20 Use synonyms
million
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tonnes
 in 2002.
      To look  into details, both water and rail modes had an almost similar start in 1974 with around 40 Use synonyms
million
 Use synonyms
tonnes
 and kept it steady to 1978. But, from 1978 to 2002,  their trends became different. Clearly, water increased from 40 Use synonyms
million
 Use synonyms
tonnes
 to nearly 60 Use synonyms
million
 Use synonyms
tonnes
 from 1978 to 1982 respectively and almost kept it constant until 1990. Use synonyms
Then
 it decreased to around 50 Linking Words
million
 Use synonyms
tonnes
 and suddenly rose in 1998 to reach around 63 Use synonyms
million
 Use synonyms
tonnes
 in 2002. On to flip side, rail had some fluctuations  its rates were under 40 Use synonyms
million
 Use synonyms
tonnes
 until 1998. After 1998, it grew  slightly just above 40 Use synonyms
million
 Use synonyms
tonnes
 in 2002.Use synonyms