According to the The U.S. News Short List, financial contributions to colleges in the U.S. rose 9 percent in 2013, and alumni is who is credited for much of that increase. Of the $33.8 billion donated to higher education institutions in 2013, 26.6 percent came from alumni, according to a report from the Council for Aid to Education.

At many historically black colleges and universities, which were created to educate African-American students and are designated by the U.S. Department of Education, the average percentage of alumni giving hovers below 10 percent. But some black institutions have alumni who donate at a much higher rate, according to data submitted to U.S. News by 45 ranked institutions.

At Claflin University, for example, 43 percent of alumni donated. It had the highest two-year average of alumni giving among historically black institutions during the 2010-2011 and 2011-2012 school years.

Albany State University had one of the lowest average percentages of alumni donations: 2.6 percent.

The D.J's Music Site HBCU Campaign's HBCUs of the Month of February and April, the University of Arkansas at Pine Bluff and Johnson C. Smith University, both top the list of most alumni giving.

Below is a list of the 10 historically black colleges and universities with the highest two-year average percentage of alumni donors. Only schools that reported alumni giving data for both 2010-2011 and 2011-2012 were included. Unranked schools, which did not meet certain criteria required by U.S. News to be numerically ranked, were not considered for this report.

1. Claflin University (SC)