The line graph illustrates the amount of money which users spent yearly on mobile phone, national and international fixed-line and services in the USA over a period of 9 years starting from 2001.
Overall, it is clear that annual expenditure on mobile phones witnessed an upward trend, while the opposite was seen in the yearly spending on national fixed-line services. Additionally, the figure for international fixed-line services was the lowest during the period.
In 2001, the amount of money spent on cellphone services stood at just over $100, which is the smallest figure in the period. From 2001 to 2010, yearly spending on mobile phones witnessed a significant increase to approximately 750 dollars in 2010.
Average annual expenditure on national fixed-line services stood at $700, which was the highest figure in the first examined year. Over the next 9 years, this amount significantly decreased by $300, falling to $400 in 2010. At the same time, there was a little fluctuation in the yearly expenditure on International fixed-line services, starting at about $50 in 2001 and ending the period at over $300.
