| 
 | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 | 
| X1 | 1 | 0.39 | 0.4 | 0.4 | 0.55 | 0.48 | 0.39 | 0.27 | 0.24 | 
| X2 | 0.39 | 1 | 0 | 0.06 | 0.71 | −0.05 | −0.04 | 0.01 | 0.04 | 
| X3 | 0.4 | 0 | 1 | 0.87 | 0.27 | 0.54 | 0.94 | 0.17 | 0.54 | 
| X4 | 0.4 | −0.06 | 0.87 | 1 | 0.17 | 0.45 | 0.88 | 0.15 | 0.42 | 
| X5 | 0.55 | 0.71 | 0.27 | 0.17 | 1 | 0.32 | 0.25 | 0.22 | 0.37 | 
| X6 | 0.48 | −0.05 | 0.54 | 0.45 | 0.32 | 1 | 0.6 | 0.6 | 0.46 | 
| X7 | 0.39 | −0.04 | 0.94 | 0.88 | 0.25 | 0.6 | 1 | 0.25 | 0.51 | 
| X8 | 0.27 | 0.01 | 0.17 | 0.15 | 0.22 | 0.6 | 0.25 | 1 | 0.32 | 
| X9 | 0.24 | 0.04 | 0.54 | 0.42 | 0.37 | 0.46 | 0.51 | 0.32 | 1 | 
| X10 | 0.37 | 0.01 | 0.87 | 0.89 | 0.23 | 0.62 | 0.88 | 0.27 | 0.52 | 
| X11 | 0.36 | 0.11 | 0.7 | 0.83 | 0.25 | 0.36 | 0.66 | 0.11 | 0.36 | 
| X12 | 0.33 | 0.05 | −0.02 | 0.05 | 0.26 | 0.64 | 0.03 | 0.57 | 0.11 | 
| X13 | 0.46 | 0.06 | 0.34 | 0.21 | 0.21 | 0.76 | 0.36 | 0.52 | 0.38 | 
| X14 | 0.41 | −0.04 | 0.38 | 0.29 | 0.28 | 0.83 | 0.47 | 0.61 | 0.23 | 
| X15 | 0.18 | −0.13 | 0.25 | 0.27 | 0.12 | 0.65 | 0.3 | 0.47 | 0.05 | 
| X16 | 0.41 | 0 | 0.69 | 0.75 | 0.25 | 0.66 | 0.72 | 0.55 | 0.48 | 
| X17 | 0.41 | 0 | 0.69 | 0.75 | 0.25 | 0.66 | 0.72 | 0.55 | 0.48 | 
| X18 | 0.35 | 0.04 | 0.96 | 0.9 | 0.25 | 0.46 | 0.92 | 0.1 | 0.45 |