The number of African Americans who earned doctorates in 2013 was not on par with Black representation in the U.S. population though it did increase from the previous year’s, according to the results of a recent study.

The National Science Foundation recently released its annual “Survey of Earned Doctorates,” which assessed doctoral degrees awarded by U.S. universities to both American and foreign students.

In 2013, universities in the United States conferred 52,749 doctorates, 4.1 percent — or 2,167 — of which were earned by African Americans. Among U.S. students only, African Americans earned 6.4 percent of all doctoral degrees awarded. Black Americans comprise about 13 percent of the U.S. population.

The number of Black doctorates, however, did increase, up 5.3 percent in 2013, following an 8.3 percent increase the year before.

The survey also counted doctoral degrees awarded to students of African descent from  other countries. Such students earned 485 doctorates in 2013, representing a 19 percent increase over the past two years.

Data from the survey can be found here. A full interactive report will be published soon.