Table 6.

The degree of grey correlation for rural areas in each city.

City	$q_i^{+}$	$q_i^{-}$
Hangzhou	0.9359	0.7160
Ningbo	0.8998	0.7431
Wenzhou	0.8008	0.8042
Jiaxing	0.8116	0.8118
Huzhou	0.7946	0.8026
Shaoxing	0.8502	0.7584
Jinhua	0.8092	0.8039
Quzhou	0.7899	0.8370
Zhoushan	0.7268	0.9232
Taizhou	0.8385	0.7787
Lishui	0.7739	0.8468