Answer the following questions with the given information and the graph:
Alpha company uses Rex as main raw material for manufacturing Item A, Item B, Item C and Item D.
The graph below shows the proportion of items produced and price trend of Rex. Annual Res_Index of an item in a given year is measured as follows:
Res_Index of Item A in Year 2013 = Absolute Value (Production of Item A in 2013 - Production of Item A in 2012) / Absolute Value (Rex Price in 2013 - Rex Price in 2012)
From the years mentioned below, in which year average Res_Index of all items manufactured was highest?
1. 2012
2. 2013
3. 2016
4. 2017
The production and price of Rex over relevant years is tabulated as follows:
The Res-Index for the different commodities has been computed and tabulated as follows
As we can see, the average Res-Index is the highest for 2012
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