Year

Coefficient of variation of technical efficiency

Kendall’s index of rank concordance

${\chi }^2$ test statistic for Kendall’s index

2000-01

0.253

1.0000

2001-02

0.247

0.7143*

10.00

2002-03

0.265

0.6773*

14.22

2003-04

0.271

0.6726

18.83

2004-05

0.274

0.7048

24.67

2005-06

0.248

0.7222

30.33

2006-07

0.236

0.7425

36.38

2007-08

0.245

0.7470

41.83

2008-09

0.234

0.7149

45.04

2009-10

0.223

0.6752

47.26

2010-11

0.214

0.6903

53.15

2011-12

0.234

0.6756

56.75

2012-13

0.241

0.6715

61.11