Research Article
Energy Investment Potential and Strategic Layout in Countries along the “Belt and Road” Based on Principal Component Analysis
Table 4
Variance contribution rate and cumulative variance contribution rate of principal components.
| Component number | Eigenvalue | Variance contribution rate | Cumulative |
| 1 | 7.608 | 26.234 | 26.234 | 2 | 3.534 | 12.186 | 38.421 | 3 | 2.919 | 10.066 | 48.486 | 4 | 2.688 | 9.268 | 57.754 | 5 | 2.301 | 7.936 | 65.690 | 6 | 1.398 | 4.821 | 70.511 | 7 | 1.228 | 4.234 | 74.745 | 8 | 0.970 | 3.346 | 78.091 | 9 | 0.883 | 3.044 | 81.134 | 10 | 0.780 | 2.690 | 83.824 | 11 | 0.736 | 2.537 | 86.361 | 12 | 0.660 | 2.275 | 88.636 | 13 | 0.527 | 1.818 | 90.454 | 14 | 0.458 | 1.580 | 92.034 | 15 | 0.419 | 1.445 | 93.479 | 16 | 0.365 | 1.258 | 94.737 | 17 | 0.285 | 0.982 | 95.719 | 18 | 0.278 | 0.960 | 96.679 | 19 | 0.203 | 0.701 | 97.380 | 20 | 0.181 | 0.625 | 98.006 | 21 | 0.154 | 0.532 | 98.538 | 22 | 0.125 | 0.431 | 98.969 | 23 | 0.091 | 0.315 | 99.284 | 24 | 0.059 | 0.205 | 99.489 | 25 | 0.057 | 0.195 | 99.685 | 26 | 0.042 | 0.144 | 99.829 | 27 | 0.027 | 0.092 | 99.921 | 28 | 0.016 | 0.057 | 99.978 | 29 | 0.006 | 0.022 | 100.000 |
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