This graph illustrates the number of minutes

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Essay： 

This graph illustrates the number of minutes(billions) of UK telephone calls which have three different kinds between 1995 and 2002. 

It is clear that fixed line of local was the most important call type throughout the whole period. The trend showed the steady increase from 72 to the peak at 93 between 1995 and 1999. After which, the number was decreased to 70 in 2002.

The national and international fixed line had a middle amount, UK witnessed a gradual growth of it from 37 in 1995 to 60 in 2002. Besides, calls from mobiles(all calls) was the lowest one but rose dramatically in few years. At first, A small rose can be found in it from only 2 in 1995 to about 12 in 1999. From then on, there was an enormous upward trend of mobile calls to 45 in 2002.

In conclusion, the UK was mostly use fixed line about local or national and international in the past, but may have more users of mobile phone in the future.