By 2015, "The Oxford University Examination Regulations" called for a faculty board at Oxford to "appoint judges to consider the evidence submitted by any candidate, and to report thereon to the board. In making their report the judges shall state whether the evidence submitted constitutes an original contribution to the advancement of knowledge of such substance and distinction as to give the candidate an authoritative status in some branch or branches of learning." Between 1923 and 2016, Oxford awarded 219 D.Litt. degrees, of which 196 were awarded to men and 23 to women. Among the six higher doctoral degrees at Oxford (D.D., D.M., D.C.L., D.Litt., D.Sc., D.Mus.), the D.Litt. comprised 27.5% of the higher doctorates awarded during this 93-year period.