Table 4 The values of phase and squared coherence

Region	Common cycle	Phase	Squared coherence
Total	20 month	−0.3	0.82
	48 month	−0.2	0.82
SMetro	20 month	−0.3	0.75
	48 month	0.0	0.75
5Cities	24 month	−0.2	0.58
	48 month	−0.5	0.78
SMetro	20 month	−0.5	0.77
	48 month	−0.2	0.87