Table 8.

The weights of criteria.

	${\delta }_m^{+}$	${\delta }_m^{-}$	$CW$	Normalized weights
C1	0.505	0.916	0.645	0.117
C2	0.399	1.022	0.719	0.131
C3	0.202	1.221	0.858	0.156
C4	0.360	1.062	0.747	0.136
C5	0.347	1.075	0.756	0.137
C6	0.150	1.274	0.895	0.163
C7	0.167	1.257	0.883	0.160