Shown here are retail price figures and quantity estimates for five different food commodities over 3 years. Use these data and a base year of 2017 to compute unweighted aggregate price indexes for this market basket of food. Using a base year of 2017, calculate Laspeyres price indexes and Paasche price indexes for 2018 and 2019.

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2017 Price Quantity Price Quantity Price Quantity 1.26 21 1.32 23 1.39 22 0.97 3 1.56 68 1.02 2.86 Item Margarine (lb.) Shortening (lb.) 0.94 Milk (1/2 gal.) 1.43 Cola (2 liters) 1.05 Potato chips (12 oz.) 2.81 2018 5 70 12 27 13 29 1.12 1.62 1.25 2.99 2019 4 65 11 28