In 2012, graduate and professional libraries offered an average of almost 140,000 ebooks,
while undergraduate libraries offered more than 80,000, and community college libraries offered 32,400.
Undergraduate libraries experienced a nearly sixfold increase, from 4,800 to 27,550 during the same time period,
while circulation remained relatively flat at community college
libraries, rising from 3,200 to 3,873.