X1

X2

X3

X4

X5

X6

X7

X8

X1

1

0.992

0.848

0.985

0.993

0.984

0.978

0.974

X2

0.992

1

0.789

0.966

0.98

0.966

0.95

0.983

X3

0.848

0.789

1

0.9

0.873

0.867

0.898

0.744

X4

0.985

0.966

0.9

1

0.984

0.972

0.973

0.956

X5

0.993

0.98

0.873

0.984

1

0.993

0.99

0.958

X6

0.984

0.966

0.867

0.972

0.993

1

0.995

0.949

X7

0.978

0.95

0.898

0.973

0.99

0.995

1

0.932

X8

0.974

0.983

0.744

0.956

0.958

0.949

0.932

1