Data for selected fruits purchased at wholesale prices for 2005 and 2009 are shown in the following table. 
What is Fisher's ideal index?
Definitions:
Births
The occurrence of an organism coming into life or existence, relevant in demographic and epidemiological studies.
Spending Variance
The difference between the budgeted amount of expenses and the actual amount spent.
Corporate Function
Essential activities or responsibilities centralized at the corporate level, helping in achieving the organization's strategic objectives and supporting day-to-day operations.
Standard Cost Card
A detailed listing of the standard amounts of inputs and their costs that are required to produce one unit of a specific product.
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