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)

1211

1305

1389

1441

1399

1349

1325

1411

1556

1846

2037

边的数 ( l )

3086

3190

3172

3260

3020

2879

2807

2963

3201

3876

4429

密度(d)

0.0042

0.0037

0.0033

0.0031

0.0031

0.0032

0.0032

0.0030

0.0026

0.0023

0.0021

平均度 ( k )

5.0966

4.8889

4.5673

4.5246

4.5673

4.2683

4.2370

4.1999

4.1144

4.1993

4.3486

幂率指数(r)

3.5000

3.4900

3.5000

3.5000

3.5000

2.7200

3.5000

3.5000

2.8000

2.8500

3.5000

平均最短距离(L)

2.5276 [1.9600]

2.7656 [1.3092]

2.8846 [1.3049]

2.8847 [1.3129]

3.0434 [1.9813]

3.0959 [1.2598]

3.0341 [1.2649]

聚类系数 ( C 4 , m n ( i ) )

0.1976

[0.0042]

0.1630

[0.0037]

0.1339

[0.0033]

0.1358

[0.0031]

0.1188

[0.0033]

0.1101

[0.0032]

0.1021

[0.0032]

0.0934 [0.0030]

0.0862

[0.0026]

0.0863 [0.0023]

0.0889

[0.0021]