Table 3.

Basic statistics for the social network analysis, compared with those of a random network.

Year	Number of users	Average degree		Network diameter		Number of communities		Clustering coefficient		Average path length
		Study network	Random network	Study network	Random network	Study network	Random network	Study network	Random network	Study network	Random network
2013	629	5.67	16.08	7	10	6	8	0.210	0.026	3.20	2.58
2014	951	7.00	23.70	8	10	9	10	0.176	0.025	3.21	2.45
2015	1268	6.78	31.73	9	10	13	11	0.136	0.025	3.36	2.36
2016	1472	5.99	36.98	8	9	13	10	0.113	0.025	3.51	2.31
2017	1415	4.81	35.46	10	10	13	10	0.097	0.025	3.81	2.32
2018	1212	3.98	30.37	11	9	16	10	0.077	0.025	4.35	2.37
2019	796	3.29	19.79	14	11	23	10	0.072	0.025	4.59	2.49