* Values presented are for the 50 U.S. states and the District of Columbia. Calculations were performed on all surveyed libraries, not just those meeting Institute of Museum and Library Services criteriafor public libraries.
** Includes monetary gifts and donations received in the current year, interest, library fines, fees for library services, and grants. For the share of libraries’ operating revenue that derived from federal sources, see Supporting Table V-10b.
Source: U.S. Department of Education, National Center for Education Statistics, Public Libraries Survey (1995–2005); Institute of Museum and Library Services, Public Libraries in the United States Survey (2006–2013).