Writing Part 1 IELTS - Line graph, Goods transported in UK

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The line graph shows the number of goods transported in the UK by four means: road, water, rail, and pipeline from 1974 to 2002.
Overall, by the end of the period, rail-transported goods were the only ones to remain within a tight range at approximately the same value. The other three all increased by a factor of about 1.4 to 2.2. The ranks of road and pipeline didn't change over the entire time, while water took over rail's place and ended at third.
In 1974, around 70 million tonnes of goods were transported by road, about 175% of rail's value. While rail-transported goods hit a low in 1995, there was only a slight decrease in the number of road-transported ones. From that point, goods transported by road were increasingly popular, and the figure stood at nearly 100 million tonnes in 2002, almost 2.5 times as high as rail's value.
Between 1974 and 1982, there was an upward trend in both the numbers of goods transported by water and pipeline. However, in the next ten years, these two showed little changes. At this point, the figures were nearly 60 million tonnes and 19 million tonnes, respectively. Although the last ten year of the period saw ups and downs in both water-transported and pipeline-transported goods, pipeline remained the least common means of transport with only around 21 million tonnes, approximately 1/3 of water's value.