作者：Lee Rainie and Maeve Duggan 2012年12月27日 The Pew Research CenterFindings
The population of e-book readers is growing. In the past year, the number of those who read e-books increased from 16% of all Americans ages 16 and older to 23%. At the same time, the number of those who read printed books in the previous 12 months fell from 72% of the population ages 16 and older to 67%.
