Median difference test

Comparison Period

Technical Efficiency

Allocative Efficiency

Economic Efficiency

Mar 01/Dec 01(1)

0.694994

−2.29973**

1.72577*

Dec 01/Sep 02(2)

0.6012

1.60184

1.36781

Sep 02/Mar 03(3)

0.343593

−3.20166***

−2.65503***

Mar 03/Jun 04(4)

−1.0149

0.738463

0.14251

Jun 04/Jun 05(5)

0.661715

0.919946

1.04099

Jun 05/Dec 07(6)

−0.465195

5.35869***

4.93375***

Dec 07/Dec 08(7)

0.4116

−5.49547***

−5.30583***

Dec 08/Dec 09(8)

5.71337***

−0.807559

−1.67126*

Dec 09/Jun 11(9)

−5.30845***

3.44823***

−0.412124

Jun 11/Dec 12(10)

0.900983

0.185828

0.456123

Dec 12/Jun 14(11)

−1.21038

2.28802**

1.85852*