The line graph illustrates the average amount of money spent anually on mobile phone services, and, national and international landline services in the US over a period of 9 years.
Overall, while the annual expenditure on mobile phones witnessed a substantial rise, the spending on national landline phone services exhibited a contrasting downward trend. Moreover, the expenditure on international fixed-line services exhibited no change, being the smallest in magnitude among the three categories during the specified period
In the year 2001, the average expenditure of U.S. residents on national landline phone services stood at a substantial figure of nearly $700, markedly higher than the approximate $200 spent individually on mobile phone services and international landline services. However, over the subsequent five-year period, the average amount disbursed on national fixed-line phone services experienced a decline of approximately $200. Presenting a stark contrast, the yearly spending on cell phone services underwent a significant upswing of roughly $300 during the same timeframe. Concurrently, the expenditure on overseas landline services exhibited minor fluctuations, hovering slightly below the $300 mark.
The year 2006 witnessed U.S. consumers allocating an equal amount of expenditure, just over $500, towards both mobile and national fixed-line services. From 2006 onwards, it is evident that the average yearly spending on mobile phone services surpassed that of national fixed-line phone services, establishing itself as the predominant mode of telecommunication. To elaborate, the yearly expenditure on mobile phone services escalated to nearly $750 by the final year, while the corresponding figure for national landline phone services declined to approximately $400 by the end of the period. At the same time, the expenditure on overseas phone services exhibited a stable trend.