1

2

3

4

5

6

7

8

9

10

综合运输成本/元

2401.7

2473.7

2289.7

2589.1

2501.7

2478.5

2597.6

2564.8

2486.0

2635.6

碳排放量/kg

143.3

141.7

147.4

140.5

138.9

140.1

137.5

139.5

142.8

139.1

企业配送水平

−33.4

−33.7

−26.0

−40.9

−38.3

−35.8

−43.1

−41.5

−37.9

−43.2