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

Table 8

Past-present period scores and rankings of Indian mining companies.

Year	2010		2011		2012		2013		2014
DMUs	Score	Rank	Score	Rank	Score	Rank	Score	Rank	Score	Rank
DMU1	0.08222255	20	0.0656456541	18	0.170071799	17	0.17558929	15	0.138931313	16
DMU2	1	8	1	6	1	7	1	6	1	6
DMU3	0.2055158	15	0.113620718	16	0.162615278	18	0.134712868	16	0.125793692	17
DMU4	0.19229379	16	0.198593163	15	0.291067259	15	0.34429635	14	0.318260742	14
DMU5	1	8	1	6	1	7	1	6	1	6
DMU6	2.16770264	1	2.033090027	1	2.80326237	1	2.31536708	1	1.95872746	1
DMU7	0.77740861	12	0.366271981	13	0.331701432	14	0.451008567	12	0.410027591	13
DMU8	1.15413633	6	1.199295331	5	1.272546625	3	1.289155822	4	1.161877176	4
DMU9	1.42647404	3	0.455163255	10	0.672443382	11	0.917292682	10	0.882773643	10
DMU10	1.46305544	2	1.461774497	3	1.147627203	5	0.084511232	18	0.599494462	11
DMU11	0.45409773	13	0.243722044	14	0.568035889	12	0.673623254	11	0.475303705	12
DMU12	0.12372762	19	0.077112542	17	0.0752215685	19	0.042416986	19	0.000171154	23
DMU13	0.23899823	14	0.418336879	11	0.407331963	13	0.381797764	13	0.270659073	15
DMU14	1.09447397	7	0.369363507	12	1.238128139	4	1.022411301	5	1.018807964	5
DMU15	0.02661588	22	0.0154215465	22	0.009125436	23	0.010363164	21	0.000335555	22
DMU16	0.01421234	23	0.0492145623	20	0.0262563212	21	0.087653698	17	0.091590783	18
DMU17	1.34986652	4	1.323199209	4	1.402620489	2	1.409316421	2	1.457257143	2
DMU18	0.169931707	17	0.0656414141	19	0.176270834	16	0.036263254	20	0.001525555	19
DMU19	0.05345621	21	0.042986456	21	0.039523654	20	0.002632693	22	0.001275366	20
DMU20	1	8	0.99985281	9	1	7	1	6	1	6
DMU21	1.173117286	5	1.503902073	2	1.053500985	6	1.335737125	3	1.417097825	3
DMU22	1	8	1	6	1	7	1	6	0.999033846	9
DMU23	0.159980331	18	0.0090814569	23	0.016914788	22	0.0019455655	23	0.000641568	21