Refer to the data below to answer the following questions:

Expenditure Income
C. Consumer goods and services $11,502 Wages and salaries $8,868
Corporate profits 1,686
I: Investment in plants, equipment, and inventory 2,670 Proprietor's income 1,348
G. Government goods and services 3,125 Rents 59
Interest 619
X: Exports 2,260 Taxes on output and import 1,147
Depreciation 2,647
M: Imports (2,757) Statistical discrepancy (106)
GDP: Total value of output $16,800 = Total value of income $16,800

Required:
What share of U.S. total income in 2013 consisted of

a. Wages and salaries
b. Corporate profits