An Empirical Study of Hybrid DEA and Grey System Theory on Analyzing Performance: A Case from Indian Mining Industry

Table 13

Efficiency (catch-up) change over the period 2010 to 2014.

Catch-up	2010 => 2011	2011 => 2012	2012 => 2013	2013 => 2014	Average
DMU1	0.797164	2.59442	1.032442	0.791229	1.303814
DMU2	1	1	1	1	1
DMU3	0.552856	1.431211	0.828415	0.933791	0.936568
DMU4	1.032759	1.465646	1.182876	0.92438	1.151415
DMU5	1	1	1	1	1
DMU6	0.937901	1.378819	0.825954	0.845968	0.997161
DMU7	0.471145	0.905615	1.359682	0.909135	0.911394
DMU8	1.039128	1.061079	1.013052	0.90127	1.003632
DMU9	0.319083	1.477367	1.364119	0.962369	1.030734
DMU10	0.999124	0.785092	0.073613	7.096281	2.238527
DMU11	0.536717	2.330671	1.185882	0.705593	1.189716
DMU12	0.62322	0.975688	0.562964	18.58698	5.187213
DMU13	1.750376	0.973694	0.937314	0.708907	1.092573
DMU14	0.33748	3.352059	0.825772	0.996476	1.377947
DMU15	0.578274	0.584548	1.151855	59.18462	15.37482
DMU16	3.469142	16.39564	0.107797	1.053356	5.256485
DMU17	0.980244	1.060022	1.004774	1.033946	1.019747
DMU18	0.33236	3.121029	0.205235	0.042027	0.925162
DMU19	0.792118	0.940237	0.065941	100	25.44957
DMU20	1	1	1	1	1
DMU21	1.281971	0.699462	1.269806	1.060911	1.078037
DMU22	1	1	1	1	1
DMU23	0.05752	28.01865	0.010044	0.880411	7.241656
Average	0.908199	3.197868	0.826415	8.765985	3.424616
Max	3.469142	28.01865	1.364119	100	25.44957
Min	0.05752	0.584548	0.010044	0.042027	0.911394
SD	0.670389	6.293493	0.434709	23.49756	5.821886