Table 5 The results of the Kruskal–Wallis test.

From: Decomposing the comprehensive efficiency of major cities into divisions on governance, ICT and sustainability: network slack-based measure model

	2015		2016		2017		2018		2019
Efficiency	Z	p-value	Z	p-value	Z	p-value	Z	p-value	Z	p-value
Overall	−2.4514^a	0.0142	−3.2440^a	0.0012	−2.3926^a	0.0167	−1.8642	0.0623	−2.43670^a	0.014822
Governance	−1.8936	0.0583	−2.2165^a	0.0267	−2.1284^a	0.0333	−1.8349	0.0665	−2.12844^a	0.033301
ICT	−2.0844^a	0.0371	−2.4220^a	0.0154	−2.0991^a	0.0358	−1.5119	0.1306	−2.01101^a	0.044325
Sustainability	−3.2440^a	0.0012	−3.0972^a	0.0020	−1.1596	0.24612	−1.3359	0.1816	−1.33578	0.181621

^aDenote significance at the 5% levels.

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