The graph illustrates yearly spending on cell phone and residential phone services from 2001 and 2010.
Overall, money spent on cell phone services was more than the residential, over the given time period .Money spent on both services were equal in 2006. At the beginning, people used residential services more, but, at the end of the period, cell phones became the most promising service.
In 2001, almost $700 was spent on domestic cell phone services. After 2002, this figure gradually decreased to under $600. For the next three years, the figure remained steady, in between $600 to $500, before drastically falling to around $350 in 2010.
At the start, cell phone service was not very popular, spending of this service was only $200, then after 2004, it increased drastically around $500, and remained unchanged for the next two years. In 2010 ,it reached a high of $700 and became the most popular service among consumers.
