From: Temporal-spatial evolution analysis of carbon emission efficiency in the logistics industry of coastal provinces in China based on the super-efficiency SBM model
t/t + 1
n
L
M-L
M-H
H
44
0.7273
0.2500
0.0000
0.0227
43
0.1395
0.4651
0.2558
42
0.0238
0.0952
0.5238
0.3572
36
0.1389
0.3056
0.5555