The graph illustrates the total figure of minutes for three types of telephone calls in the UK over an eight-year period, from 1995 to 2002. Overall, it is evident that the residential phone for locals remained dominant throughout all years, although its figure declined in the last three years. In addition, mobiles for all calls experienced a noticeable climb, whereas the landline for national and international increased only slightly.
In 1995, the fixed line for local calls represented the highest number of minutes at 72 billion, followed by the national and international calls made via residential phone at 38 billion minutes. On the other hand, mobiles for all calls recorded only 4 billion minutes. By 1998, the landline for local calls rose steadily to nearly 90 billion minutes. Meanwhile, national and international fixed line calls and mobiles for all calls were slightly below 50 billion minutes and 10 billion minutes, respectively.
From 1999 onwards, local calls made via residential phone peaked at 90 billion minutes in 1999, before plunging to 72 billion minutes in 2002, a figure similar to that recorded in the first year. However, the landline for national and international calls recorded modest growth, climbing further from 50 billion minutes to around 61 billion minutes over the same period. It is interesting to note that mobiles for all calls almost quadrupled, rising from 12 billion minutes in 1999 to 45 billion minutes in the final year.