(The following national income data are in billions of dollars.) Depreciation $25 Government Purchases $315 Canada Imports $260 Taxes on Production and Imports $290 Transfer Payment $247 Canada Exports $249 Personal Consumption Expenditures $475 Gross Private Domestic Investment $300 Social Security Contributions $240 Personal Income Taxes $65 Statistical Discrepancy $0 Refer to the above data. Gross domestic product in this economy is: $1,101 billion $1,090 billion $1,079 billion $1,049 billion