Use the bar graph from the World View: "Comparative Output (GDP)" to answer three questions. 18.0 2015 Gross Domestic Product (GDP) (in trillions of U.S. dollars) 11.0 4.4 3.4 29 1.3 14 1.1 0.65 0.01 0.06 Haiti Ethiopia Saudi Mexico Russia South Britain Germany Japan China United Arabia Korea States In 2015, the world's total output (real GDP) was roughly $80 trillion. What percentage of this total was produced Instructions: Enter your responses rounded to two decimal places. a. By the three largest economies shown in this bar graph? % b. By the three smallest economies shown in this bar graph? 1%