X9

X10

X11

X12

X13

X9

1.000

0.992

0.998

0.999

0.998

X10

0.992

1.000

0.997

0.997

0.996

X11

0.998

0.997

1.000

1.000

0.999

X12

0.999

0.997

1.000

1.000

0.999

X13

0.998

0.996

0.999

0.999

1.000

均值

0.9974

0.9964

0.9988

0.9990

0.9984