The basic statistical properties of each layer of the lobby network.

N is the number of nonisolated nodes. E is the number of links. 〈k〉 is the average degree of the network. H is the reciprocal of the Herfindahl index of the degree sequence. d is the average shortest path length of the network. c is the average clustering coefficient of the network. r is the assortativity coefficient of the network. We consider these networks as undirected when calculating these indices.