Use the following information for the three grains. 
Calculate the Laspeyres index.
Definitions:
Risk-Free Rate
The theoretical return on an investment with no risk of financial loss, often represented by the yield on government bonds.
Portfolio Expected Worth
The projected value of a portfolio, considering the potential returns of the investments within it over a specific timeframe.
Alpha
A performance measure indicating the excess return of an investment relative to the return of a benchmark index or risk-free rate.
Risk-Free Rate
The return on an investment with no risk of financial loss, often represented by government bonds.
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