($ billions) Corporate income 56 Exports 43 Wages and salaries 308 Net international income to the rest of the world 4 Gross investment 92 Government purchases 108 Indirect taxes 41 Personal consumption 288 Imports 16 Depreciation 43 Proprietors' incomes and rents 31 Statistical discrepancyc. The value of the statistical discrepancy which is added to the lower estimate and subtracted from the higher estimate to find a single GDP value is $| | billion