The Babson Survey Research Group (BSRG) produced a report that examines trends and patterns of distance education enrollments among U.S. degree-granting higher education institutions. The findings show that the number of higher education students taking at least one distance education course in 2015 now tops six million, about 30% of all enrollments. Enrollment growth was uneven across higher education sectors.
The report can be obtained at http://digitallearningcompass.org/.