Suppose the fictitious country of Islandia begins fiscal year 1 with no public debt. The tax revenues and government expenditures for the next five years are shown in the table below. Instructions: In parts a and b, enter'your answers as whole numbers. In part c, round your answer to 1 decimal place. Enter a positive number for a surplus and a negative number for a deficit (debt). a. Calculate the deficit or surplus for each fiscal year and record it in the table below. Government Surplus or Tax Revenues, Year Billions $121 126 132 131 132 Billions Billions $122 129 129 138 136 5 b. At the end of fiscal year 5, what is the total public surplus or debt? billion c. Suppose GDP is $253 billion. What percent of GDP does the public debt represent? percent