Operation Efficiency Evaluation of the China-Europe Freight Train Based on Grey Cross-Efficiency DEA

Table 7

Normalized data.

Year
2011	0.0027	0.0204	0.0179	0.0154	0.2000	0.0026	0.0028	0.0000
2012	0.0066	0.0408	0.0536	0.0462	0.2000	0.0069	0.0074	0.0000
2013	0.0126	0.1224	0.1250	0.1231	0.4000	0.0131	0.0186	0.0000
2014	0.0484	0.2653	0.2679	0.2769	0.4000	0.0489	0.0526	0.2151
2015	0.1281	0.4490	0.4643	0.4615	0.4000	0.1292	0.1388	0.7683
2016	0.2675	0.5714	0.5536	0.6000	0.8000	0.2734	0.2938	0.7943
2017	0.5772	0.6939	0.6250	0.8769	0.8000	0.5962	0.5844	0.8203
2018	1.0000	1.0000	1.0000	1.0000	1.0000	1.0000	1.0000	1.0000