In examining the national income accounts of the closed economy of Country Y, you see that it in 2007 it had taxes of $100 billion, transfers of $40 billion, and government purchases of goods and services of $80 billion. You also notice that in 2006 it had private saving of $50 billion and investment of $70 billion. In which year did Country Y have a budget deficit of $20 billion? Select one: O 2006 but not 2007 O neither 2006 nor 2007 O 2007 but not 2006 O 2007 and 2006