Factors

Total cost/MJ actual

Total cost/MJ estimated

Total cost/MJ

Total cost/MJ

heteroscedistic asymptotic variance (HAV)

Z-test

VR(q)a

Time↓

Fuel→

Xt = R1:R3

Xt(e) = R1:R3

(Xt-q)a

(Xt-q)e

V(Xt−k)/V(Xt)

v^*(k)a

Z^*(k)a

1992

3.9000E+01

1.1116E+03

4.1000E+01

1.3701E+08

0.966356446

3.84329E+18

−4.38E−21

1993

4.0000E+01

1.1424E+03

4.4484E+01

1.4422E+08

1994

4.1000E+01

1.1733E+03

4.7812E+01

1.1972E+08

1995

4.2170E+01

1.2095E+03

5.1161E+01

1.1741E+08

VR(q)e

v*(k)e

Z*(k)e

1996

4.3443E+01

1.2487E+03

5.6236E+01

1.3269E+08

0.998432606

2.15787E+17

−7.5E−20

1997

4.4484E+01

1.2811E+03

6.0000E+01

1.6298E+08

1998

4.5184E+01

1.3021E+03

4.7504E+00

1.3699E+08

1999

4.6196E+01

1.3335E+03

4.7504E+00

1.3699E+08

2000

4.7812E+01

1.3834E+03

3.9004E+00

1.1248E+08

2001

4.9205E+01

1.4267E+03

4.6008E+00

1.3268E+08

2002

5.0000E+01

1.4511E+03

3.6507E+00

1.0528E+08

2003

5.1161E+01

1.4868E+03

4.9007E+00

1.4133E+08

2004

5.2570E+01

1.5301E+03

6.0008E+00

1.7306E+08

2005

5.4414E+01

1.5874E+03

5.4120E−04

1.2355E+03

2006

5.6236E+01

1.6439E+03

5.5200E−04

1.3419E+03

2007

5.7886E+01

1.6950E+03

5.5180E−04

1.4269E+03

2008

6.0204E+01

1.7668E+03

5.2160E−04

1.5444E+03

2009

6.0000E+01

1.7606E+03

5.4175E−04

1.6807E+03

2010

6.1000E+01

1.7917E+03

6.3370E−04

1.8596E+03

2011

6.2891E+01

1.8503E+03

7.4530E−04

1.9426E+03

1992

4.7504E+00

−1.6494E+04

1.7540E+01

8.7642E+12

1993

4.7504E+00

−1.6494E+04

1994

4.7505E+00

−1.6494E+04

1995

4.7504E+00

−1.6494E+04

1996

4.6005E+00

−1.6494E+04

1997

5.0005E+00

−1.6493E+04

1998

3.9004E+00

−1.6494E+04

1999

4.1005E+00

−1.6494E+04