The graph provided illustrates how much an average Americna consumer spent on cell phone, national and international fixed-line services per year, from 2001 to 2010. Units are measured in US dollars.
Overall, the average spending on national fixed-line services decreased over the years, while it significantly increased when it comes to cell phone services. Meanwhile, expenditure on international fixed-line services remained stable, apart from a marginal increase in the first two years. While people spent substantially more money on international fixed-line services in 2001, by 2010 it was cell phones that the average American spent the most money on.
In 2001, the average consumer in America spent about 700 dollars per year on national fixed-line services as opposed to only 200 dollars on cellphones. However, expenditure on national line services steadily decreased to about 400 dollars per year, while spendings on cell phones saw a much more radical rise to over 700 dollars annually.
When it comes to international fixed-line services, people paid a little under 300 dollars per year in the beginning of 2001. By 2003 there was a slight growth to a little over 300 dollars spent annually, which then plateaued at exactly 300 dollars.