For a syntactic relation, display breakdown by number of dependent nodes and by number of occurrences in the Polybius's treebank from the AGLDT project.
C. Bary, P. Berck, and I. Hendrickx. Proceedings of the 2Nd International Conference on Digital Access to Textual Cultural Heritage, page 91--95. New York, NY, USA, ACM, (2017)