The time of telephone calls in the UK The bar chart presents the changes of the time people in the Uk spent on three kinds of telephone calls from 1995 to 2002. It is clear that the fixed line calls made up the largest amount over the period. The number of minutes for local fixed line calls increased steadily from slightly over 70 billions, until 1999 when it reached the peak at approximately 90 billions and started to decline over the following 4 years, with the data dropping back to 70 billions in the year 2002. There was a continuous upward trend for the figure of national and international fixed line calls throughout these 7 years, with the number increasing from just under 40 billions to over 60 billions. The time the UK residents took on mobile calls rase slowly over the first 5 years, while it shot up to about 45 billions by 2002. As can be seen, local fixed line calls accounted the biggest number among the three categories over the 7 years, although it started to decline from 1999. While the time for the other two kinds of telephone calls was increasing all the time. As a result, the gap between the three types had narrowed considerably.