Given the data below ($, billion) for the year 2020, calculate: Gross Domestic Product (GDP) at current (2020) prices [5 points); and Gross Domestic Product (GDP) at constant (2000) prices [4 points]. Explain why there is a difference between GDP 2020 and GDP 2000 [1 point]. 612.50 14 Taxes on production and imports Rents Exports Government purchases Transfer payments Net foreign income Capital consumption allowance Gross investments Imports Consumption Compensation of employees Transfer payments Interest rate (%) Retail Price Index (1999) Retail Price Index (2000) -(Base Year 2000) Retail Price Index (2012) Retail Price Index (2017) 550 977 17.5 -15 32 737 579 1,810 325 15.70 4.75 103.93 104.20 117.60 118.56