指标

2010-06

2010-12

2011-06

2011-12

2012-06

2012-12

2013-06

2013-12

2014-06

2014-12

2015-06

节点数(n)

1254

1370

1449

1498

1498

1539

1545

1614

1794

1984

2215

边的数 ( l )

3408

3546

3608

3619

3578

3739

4094

4149

5566

5203

7187

密度(d)

0.0043

0.0038

0.0034

0.0032

0.0032

0.0032

0.0034

0.0032

0.0035

0.0026

0.0029

平均度 ( k )

5.4354

5.1766

4.9800

4.8318

4.7770

4.8590

5.2997

5.1413

6.2051

5.2450

6.4894

幂率指数(r)

3.2900

3.2000

3.2000

3.2700

3.1400

3.1900

2.9000

2.9600

2.5900

3.1100

2.6000

平均最短距离(L)

2.5298 [1.9649]

2.706 [1.9772]

2.754 [1.9849]

2.868 [1.9895]

2.9062 [1.9932]

2.9192 [1.9937]

2.9832 [1.9997]

2.8516 [2.0139]

2.9141 [2.0272]

2.7916 [2.0416]

聚类系数 ( C 4 , m n ( i ) )

0.2027

[0.0043]

0.16454 [0.0038]

0.1440

[0.0034]

0.1399 [0.0032]

0.1287

[0.0032]

0.1163

[0.0032]

0.1274

[0.0034]

0.1136

[0.0032]

0.1622

[0.0035]

0.1160

[0.0026]

0.1695

[0.0030]