The picture provides information about the total minutes of telephone calls in the UK, categorized by three different types, between 1995 and 2002.
Overall, the total amount of calls through both national and international fixed lines, along with mobiles, has seen a steady increase, however, calls made through local fixed lines fluctuated between the 7 years.
From 1995 to 1998, the average call minutes made through mobile carriers were just below 10 billion before they started to increase and reach their peak in 2001, at nearly 50 billion minutes a year. However, in 2002, the figures slightly fell, resulting in around 40 billion minutes for this year. In comparison, the total number of minutes of phone calls made via national and international fixed lines was relatively higher in the beginning, at more than 30 billion minutes. Moreover, there was a steady increase in the total number of calls from around 40 billion minutes to 50 billion minutes in the years 1995 and 2000.
Additionally, the figures for these corresponding lines reached their top in 2001 and remained stable in the following year at 60 billion minutes. Conversely, calls made through local fixed lines remained the leading method, maintaining the highest numbers throughout the entire period. Initially, they started at around 70 billion and peaked in 1999. Afterward, the figures gradually decreased in subsequent years, eventually returning to their starting levels amount.