米7万5千ドル以上の収入世帯の95％以上がネットを利用

2010/11/24のPew Research Center’s Internet & American Life Projectの「Use of the internet in higher-income households」から。

http://www.pewinternet.org/Reports/2010/Better-off-households.aspx

http://www.pewinternet.org/~/media//Files/Reports/2010/PIP-Better-off-households-final.pdf