The line graph below shows US consumers' average annual expenditures on cell phone and residential phone services between 2001 and 2010.

The chart depicts the US consumers’ median annual expenses on smartphone and residential devices services over a decade, from 2001 to 2010.

Overall

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,

it is clear that

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in the US, consumers spend increasingly more money each year on cell services. We can

also

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see that residential phone service expenditures have been plummeting since the emergence of cell phone service. In 2001, American consumers spent around 200$ on their mobile phone consumption.

This

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means that buyers spent 3.5 times more on their residential device.

However

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, after 10 years of evolution, the expenses per inhabitant of the US exceeded 750$ a year, meaning that they spent less on the other type of device organisations. Expenditures for landline telephone organisations in 2001 were close to 700$ per inhabitant in that country.

Nonetheless

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, across the decade, the expenses went down to about 400$, which means that people spent almost twice as much on digital call services