Integrated DEA Models and Grey System Theory to Evaluate Past-to-Future Performance: A Case of Indian Electricity Industry

Table 9

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

DMUs	March 2010		March 2011		March 2012		March 2013		March 2014
	Score	Rank	Score	Rank	Score	Rank	Score	Rank	Score	Rank
DMU1	0.1805557	14	0.153255	13	1.233397	4	0.115798	13	0.044725	14
DMU2	2.1795041	2	2.089054	1	1.981437	3	1.966767	2	1.803893	3
DMU3	0.3865749	12	0.452200	10	1.005157	8	0.450591	9	0.408009	8
DMU4	11.825946	1	1.000000	5	22.898276	1	17.639098	1	17.285690	1
DMU5	0.2957943	13	0.243983	12	0.250182	13	0.157151	12	0.102082	12
DMU6	1	5	1.180909	4	1.083435	5	0.003309	14	0.094637	13
DMU7	1	5	1.000000	5	1.000000	9	1.000000	7	1.000000	5
DMU8	0.6235547	10	0.618462	9	0.266180	12	0.352507	10	0.189113	10
DMU9	1	5	1.000000	5	0.998892	10	1.000000	7	1.000000	5
DMU10	0.457855	11	0.391654	11	0.386875	11	0.311759	11	0.264296	9
DMU11	1.3396894	4	1.211566	3	2.270265	2	1.813421	3	2.235738	2
DMU12	0.9980466	8	0.025995	14	0.085796	14	1.220087	4	0.115184	11
DMU13	1.7179445	3	1.547032	2	1.011640	7	1.072382	5	1.164481	4
DMU14	0.7090125	9	0.741591	8	1.068094	6	1.048365	6	0.998477	7