Survey suggests an estimated 10 percent of high school students in Japan addicted to the Internet

"(Survey).. the ministry said that 5.9% of junior high school students and 9.4% of high school students are “dependent” on the Internet almost to the point of addiction. "

Source: 

10% of all high school students can't live without Internet: survey

August 3rd 2013

Japan Today

http://www.japantoday.com/category/national/view/10-of-all-high-school-students-cant-live-without-internet-survey