Table 3 The values of random intercept of components among cities in Shandong Province, 2016–2022

Jinan^a

0.921

3.194

0.876

Qingdao

0.754

4.732

1.316

Zibo

0.517

0.973

2.940

Zaozhuang

1.052

0.353

0.757

Dongying

0.523

0.233

0.699

Yantai

1.826

3.870

0.716

Weifang

1.550

3.207

2.822

Jining

2.382

0.539

1.462

Taian

1.446

0.452

0.895

Weihai

0.661

0.689

3.189

Rizhao

1.076

3.136

3.690

Linyi

1.941

3.272

1.043

Dezhou

0.640

0.160

0.166

Liaocheng

0.812

0.291

0.122

Biznhou

0.707

0.772

0.968

Heze

1.022

1.076

0.876