| Linear regression correlation | Index Comparison |
| 0.99 | Energy Price Index to Commodity Price Index |
| 0.91 | Metals Price Index to Commodity Price Index |
| 0.57 | Industrial Price Index to Commodity Price Index |
| 0.55 | Agricultural Raw Materials Price Index to Commodity Price Index |
| 0.99 | Metals Price Index to Industrial Price Index |
| 0.48 | Energy Price Index to Food Price Index |