$X_1^{*}$

$X_2^{*}$

$X_3^{*}$

$X_4^{*}$

$X_5^{*}$

$X_6^{*}$

$X_7^{*}$

$X_8^{*}$

$X_1^{*}$

1

−0.525

−0.304

0.447

−0.821

0.434

−0.875

0.827

$X_2^{*}$

−0.525

1

0.568

0.404

0.831

−0.118

0.676

−0.707

$X_3^{*}$

−0.304

0.568

1

0.516

0.292

0.54

0.387

0.217

$X_4^{*}$

0.447

0.404

0.516

1

0.727

0.471

0.229

0.682

$X_5^{*}$

−0.821

0.831

0.292

0.727

1

−0.378

0.9

−0.907

$X_6^{*}$

0.434

−0.118

0.54

0.471

−0.378

1

−0.441

0.571

$X_7^{*}$

−0.875

0.676

0.387

0.229

0.9

−0.441

1

−0.823

$X_8^{*}$

0.827

−0.707

0.217

0.682

−0.907

0.571

−0.823

1