#engelcoinindex

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sochul

9y

If Ernst Engel is alive.. He would have made the Engel Coin Index.

If Ernst Engel is alive.. He would have made the Engel Coin Index.

The Engel index, which was created by German statistician Ernst Engel The social class was defined as a percentage of food-to-income ratio. Although it is difficult to use as it is based on the current

$ 101.439

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