year

region

2011

2012

2013

2014

2015

2016

2017

2018

2019

Shanghai

0.865

0.874

0.896

0.889

0.912

0.921

0.935

0.946

0.951

Jiangsu

0.893

0.902

0.91

0.921

0.913

0.925

0.942

0.951

0.964

Zhejiang

0.841

0.863

0.889

0.895

0.91

0.919

0.895

0.918

0.926

Anhui

0.789

0.81

0.829

0.843

0.889

0.895

0.906

0.9

0.916

Mean value

0.847

0.862

0.881

0.887

0.906

0.915

0.920

0.923

0.940