These are the values of the average edge multiplicity (m̃) for all networks to which the statistic applies and for which it was computed. In total, it has been computed for 938 networks.
The average edge multiplicity (m̃) is calculated for networks in which multiple edges are allowed. For one node pair, the edge multiplicity is the number of edges connecting these two nodes, taking into account the direction of edges in directed networks. This statistic equals the average value of the edge multiplicity attained over all node pairs.
The full definition of the average edge multiplicity as well as its properties and relationships to other graph statistics can be found in the KONECT handbook.