suppose that the sum of consumption, investment, and government spending is $620 billion, where investment includes involuntary accumulation of $2 billion in addtion to expenditure on plant and equipment, and governement spending includes $5 billion interest payment on the national debt, $5 billion unemployment insurance payments, $10 billion socail security payment, $2 billionin salaries to elected politicians, $14 billion in salaries to government employees, and $25 billion expenditure on goods and services produced by the private sector. If we imported $3 billion more than we exported, what is the measured GDP?