Exploring Coupling Relationship between Urban Connection and High-quality Development Using the Case of Lanzhou-Xining Urban Agglomeration

Table 3

The high-quality development index of cities, 2012–2018.

Year	Lanzhou	Baiyin	Dingxi	Linxia	Xining	Haidong	Hainan	Haibei	Huangnan	Coefficient of variation
2012	0.284	0.160	0.050	0.038	0.149	0.067	0.055	0.042	0.043	0.847
2015	0.289	0.175	0.050	0.047	0.179	0.069	0.064	0.052	0.059	0.781
2018	0.318	0.197	0.085	0.057	0.185	0.080	0.086	0.059	0.075	0.697