7band
Compare the graph below, which shows the average annual expenditures on smartphones and traditional phones in America from 2000 to 2009. The line graph compares average yearly spending by Americans on smartphones and traditional phones between 2000 and 2009.
It is clear that spending on traditional phones fell steadily over the 10-year period, while smartphone expenditure rose quickly.
The year 2005 marks the point at which expendi...