TABLE 2.

Distribution of top 10 countries with respect to closeness centrality and betweenness centrality.

2001				2017
Country	Closeness centrality	Country	Betweenness centrality	Country	Closeness centrality	Country	Betweenness centrality
Denmark	100.00	Denmark	1.59	France	100.00	France	0.81
France	100.00	France	1.59	Germany	100.00	Germany	0.81
Netherlands	100.00	Netherlands	1.59	Italy	100.00	Italy	0.81
Germany	98.33	Germany	1.44	Netherlands	100.00	Netherlands	0.81
Italy	96.72	Italy	1.33	Spain	100.00	Spain	0.81
United Kingdom	96.72	United Kingdom	1.33	Denmark	98.33	United States	0.80
United States	96.72	Spain	1.25	Poland	98.33	United Kingdom	0.77
Canada	95.16	Belgium	1.23	United Kingdom	98.33	Denmark	0.74
Belgium	93.65	United States	1.21	United States	98.33	Poland	0.74
Spain	93.65	Switzerland	1.15	Slovakia	95.16	Switzerland	0.69