The line graph illustrates the amount yearly spending on cell phone, national and international fixed-line service about 9 years from 2001. Overall, Both cell phone and national fixed line service increased and decreased dramatically while international expenditure still remained the lowest average.
In 2001, the amount of spending on national services was the highest, roughly 700$ by American. Whereas it was about 200 to 250 for each cellular phone and international services. Over the next 5 years, the average of disbursement in national service declined by approximately 200$. On the contrary, annual expenditure on mobile phones went up significantly by about 300$. In 2006, American customers cost the same quantity of money on cell phone and national fixed line services nearly 500$ on each. From 2006 forward, cell phones continued to surge hugely and 0,5 times until 2010. Contrary to the growth of mobile phones, the national fixed line didn’t stop plummeting until it reached 400$ in the final year. During that time, the figure for international phone services remained steady at 300$.
To sum up, while cell phone service lines increased dramatically, the national expenditure services and the figure of international fixed line still remained the lowest average over a period.