2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

Mean

Ranking

AR

长沙

1

0.984

0.942

0.976

0.969

0.963

0.941

0.889

0.923

0.96

0.945

0.968

1

0.0056

株洲

0.704

0.731

0.787

0.794

0.723

0.751

0.739

0.781

0.739

0.754

0.766

0.747

2

0.0084

湘潭

0.504

0.518

0.502

0.508

0.51

0.514

0.515

0.515

0.522

0.533

0.522

0.510

6

0.0035

岳阳

0.724

0.683

0.671

0.6

0.547

0.518

0.495

0.483

0.478

0.461

0.518

0.605

5

0.0329

衡阳

0.557

0.569

0.605

0.621

0.59

0.591

0.599

0.607

0.593

0.571

0.516

0.590

4

0.0076

益阳

0.468

0.474

0.464

0.461

0.462

0.462

0.45

0.448

0.442

0.438

0.44

0.463

7

0.0061

娄底

0.494

0.445

0.438

0.449

0.443

0.435

0.438

0.444

0.431

0.43

0.427

0.449

8

0.0145

常德

0.691

0.664

0.671

0.686

0.661

0.618

0.591

0.625

0.636

0.649

0.657

0.655

3

0.0063

Mean

0.643

0.634

0.635

0.637

0.613

0.607

0.596

0.599

0.596

0.600

0.599

0.623