Table 7.

DEA window analysis for scale efficiency over 7 years

		M-3	M-2	M-1	M	M + 1	M + 2	M + 3	Avg
A	Window1	0.6940	0.7070	0.7030					0.7013
	Window2		0.7450	0.7370	0.7230				0.7350
	Window3			0.7540	0.7690	0.7340			0.7523
	Window4				0.7420	0.7220	0.8620		0.7753
	Window5					0.7050	0.8240	1.0000	0.8430
B	Window1	0.9030	0.9720	0.9890					0.9547
	Window2		1.0000	1.0000	0.9540				0.9847
	Window3			1.0000	0.9640	0.9250			0.9630
	Window4				0.9840	0.9840	0.9960		0.9880
	Window5					0.9640	0.9630	1.0000	0.9757
C	Window1	1.0000	1.0000	1.0000					1.0000
	Window2		1.0000	1.0000	0.9330				0.9777
	Window3			1.0000	1.0000	1.0000			1.0000
	Window4				0.9940	0.9770	1.0000		0.9903
	Window5					0.9230	0.9810	1.0000	0.9680
D	Window1	0.9420	0.9540	0.9850					0.9603
	Window2		0.9540	0.9860	0.9020				0.9473
	Window3			0.9830	0.8550	1.0000			0.9460
	Window4				1.0000	1.0000	1.0000		1.0000
	Window5					1.0000	1.0000	0.9100	0.9700
E	Window1	1.0000	1.0000	1.0000					1.0000
	Window2		1.0000	1.0000	0.9910				0.9970
	Window3			1.0000	0.9700	0.9580			0.9760
	Window4				1.0000	0.9760	1.0000		0.9920
	Window5					1.0000	1.0000	1.0000	1.0000
	Avg	0.9078	0.9332	0.9425	0.9187	0.9245	0.9626	0.9820	0.9388