Tuesday, December 26, 2017

W1 Bar Chart | Telephone calls


The presented bar chart informs how much time spent on using the three types of telephone calls in Britain between 1995 and 2002, measured in billions of minutes. Clearly though local fixed line was the highest figure all the time, the other two categories were the ones which kept experiencing a persistent incline.

Standing out at above 70 in 1995, local line far led the remained lines. It was twice higher than national and international line while the gap was even much bigger compared to mobiles. It then increased slightly before reaching a peak at exactly 90 in 1999. The following years merely experienced a gradual decrease, yet this still was the most popular calling scheme.


In contrary, both National-International and Mobile calls witnessed a marked up trend. Though not too significant, the former increased from just below 40 around 60 minutes (billions) during an 8-year period. The later was going through the biggest change from a very small number (around 3) to just a little bit under the categories) more or less 45). It was 6 or 7 times bigger than the initial state. 

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