The Study of the Spatial Heterogeneity and Structural Evolution of the Producer Services Trade Network

Table 4

Centrality analysis of the producer services trade network (Top 15).

Rank	2000						2012
	Degree centrality		Closeness centrality		Betweenness centrality		Degree centrality		Closeness centrality		Betweenness centrality
	Country	Value	Country	Value	Country	Value	Country	Value	Country	Value	Country	Value
1	USA	98.33	USA	98.36	USA	26.62	USA	100.00	USA	100.00	USA	10.75
2	DEU	85.00	DEU	86.96	GBR	10.39	GBR	95.00	GBR	95.24	GBR	4.78
3	GBR	80.00	GBR	83.33	JPN	7.21	DEU	93.33	DEU	93.75	DEU	4.05
4	JPN	75.00	JPN	80.00	ITA	6.26	FRA	88.33	FRA	89.55	FRA	3.10
5	FRA	68.33	FRA	75.95	AUT	4.20	NLD	86.67	NLD	88.24	JPN	2.93
6	ITA	65.00	ITA	74.07	CAN	3.97	SUI	85.00	SUI	86.96	NLD	2.76
7	NLD	61.67	NLD	72.29	FRA	3.57	JPN	81.67	JPN	84.51	SIN	2.60
8	SUI	61.67	SUI	72.29	CHN	2.72	ITA	81.67	ITA	84.51	SUI	2.50
9	SIN	55.00	SIN	68.18	SIN	2.07	DNK	80.00	DNK	83.33	ITA	2.35
10	DNK	51.67	DNK	67.42	SUI	1.69	SIN	78.33	SIN	82.19	DNK	2.04
11	ESP	50.00	ESP	65.93	IND	1.60	BEL	78.33	BEL	82.19	KOR	1.97
12	CHN	45.00	CHN	64.52	BEL	1.27	KOR	78.33	KOR	82.19	BEL	1.81
13	KOR	45.00	KOR	64.52	KOR	0.98	CHN	76.67	CHN	81.08	CHN	1.27
14	CAN	43.33	CAN	63.83	BRA	0.98	SWE	71.67	SWE	77.92	AUT	1.01
15	BEL	40.00	BEL	61.86	DEU	0.62	IND	70.00	IND	76.92	SWE	0.98