Table 2. Model fitting to out-degree distribution according to [25].

Model	Parameters	CI (2.5%–97.5%)	AIC
Geometric	Mu = 2.08	1.70–2.51	188.50
Negative binomial	Mu = 2.08	1.53–2.83	189.09
	Size = 1.6	0.75–4.28
Poisson	Mu = 0.32	0.25–0.40	204.35