The table has shown the proportion of the different types usage of phone over the period of 2006 to 2010 by the owners. Over the table, it is clear to see that "Makes calls" have the by far highest percentages among all the features during the 5 years, while the "Search the internet" and "Record video" have the biggest changes. As shown in the table, the "Makes calls" have the near 100 percent in these three years, which is the highest than others. In the same time, the "Take photos" has the similar percentage to the "Send and receive text messages " , which both between 60 percent to 80 percent. The "Take photos" and the "Send and receive text messages " are rang in the second, which both and the slower increase. For the "Play games" and the "Play music", they have the bigger rise during the 5 years, and they are rise from 17 to 41 and from 12 to 26, which both have the twice time in 2010 than the 2006. Finally, the "Search the internet" and "Record video" have the biggest changes between the 2008 to 2010, with about 2-4 times increase.