Table 5.

DEA window analysis for technical efficiency over 7 years

		M-3	M-2	M-1	M	M + 1	M + 2	M + 3	Avg
A	Window1	0.6870	0.7000	0.7030					0.6967
	Window2		0.7360	0.7370	0.7230				0.7320
	Window3			0.7540	0.7380	0.7340			0.7420
	Window4				0.6980	0.7070	0.8620		0.7557
	Window5					0.6740	0.8240	1.0000	0.8327
B	Window1	0.8720	0.9720	0.9890					0.9443
	Window2		1.0000	1.0000	0.9540				0.9847
	Window3			1.0000	0.9610	0.9250			0.9620
	Window4				0.9840	0.9660	0.9960		0.9820
	Window5					0.9040	0.9190	1.0000	0.9410
C	Window1	1.0000	1.0000	1.0000					1.0000
	Window2		1.0000	1.0000	0.9330				0.9777
	Window3			1.0000	0.9310	1.0000			0.9770
	Window4				0.9940	0.9500	1.0000		0.9813
	Window5					0.9230	0.9640	1.0000	0.9623
D	Window1	0.9090	0.8640	0.9110					0.8947
	Window2		0.8640	0.9110	0.8020				0.8590
	Window3			0.9100	0.7880	1.0000			0.8993
	Window4				1.0000	1.0000	0.9470		0.9823
	Window5					1.0000	0.9570	0.8610	0.9393
E	Window1	1.0000	1.0000	1.0000					1.0000
	Window2		1.0000	1.0000	0.9660				0.9887
	Window3			1.0000	0.9700	0.9580			0.9760
	Window4				1.0000	0.9580	1.0000		0.9860
	Window5					1.0000	1.0000	1.0000	1.0000
	Avg	0.8936	0.9136	0.9277	0.8961	0.9133	0.9469	0.9722	0.9233