| Variable | IP | LNIS | LNFR | LNER | LNRI | LNFB | LNFA | LNFV | LNP3 | LNV3 | LNI3 |
| IP | 1 |
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| LNIS | 0.546 | 1 |
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| LNFR | 0.522 | 0.730 | 1 |
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| LNER | 0.513 | 0.537 | 0.788 | 1 |
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| LNRI | 0.531 | 0.915 | 0.741 | 0.656 | 1 |
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| LNFB | 0.442 | 0.713 | 0.685 | 0.653 | 0.700 | 1 |
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| LNFA | 0.459 | 0.747 | 0.943 | 0.843 | 0.791 | 0.794 | 1 |
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| LNFV | 0.439 | 0.675 | 0.422 | 0.231 | 0.660 | 0.304 | 0.337 | 1 |
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| LNP3 | 0.272 | −0.195 | −0.064 | −0.101 | −0.156 | −0.335 | −0.287 | 0.040 | 1 |
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| LNV3 | 0.248 | 0.043 | 0.175 | 0.054 | 0.062 | −0.080 | −0.017 | 0.192 | 0.633 | 1 |
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| LNI3 | 0.136 | 0.415 | 0.458 | 0.226 | 0.331 | 0.307 | 0.424 | 0.250 | −0.152 | 0.422 | 1 |