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. 2013 Jul 18;9(7):e1003142. doi: 10.1371/journal.pcbi.1003142

Table 1. Empirical data sets—Sizes and basic temporal statistics.

E-mail 1 E-mail 2 Dating Gallery Conference Prostitution
N 57,189 3,188 28,972 159(8) 113 16,730
M 92,442 31,857 115,684 647(57) 2,196 39,044
L 444,160 115,684 529,890 6,027(350) 20,818 50,632
λ 0.298 0.031 0.108 0.067 0.028 0.416
T 112.0d 81.6d 512.0d 7.3(1)h 2.5d 2,232d
B 0.416 0.383 0.652 0.40(6) 0.632 0.432

N, M and L are the number of individuals, edges in the accumulated network (pairs with at least one contact) and contacts, respectively. λ is the per-contact transmission probability used in the disease-spreading simulations. T is the total sampling time. B is the burstiness index of the entire set of interevent times between pairs of at least two contacts. The values for the Gallery data are averaged over all 69 days. The values in parentheses show the standard errors of the number in the order of its last decimal. For details of the definitions of parameters, see the Methods section.