Northup was incorporated on January 1, 2010, and adopted a calendar year for tax purposes. It had

Question:

Northup was incorporated on January 1, 2010, and adopted a calendar year for tax purposes. It had the following gross receipts for its first six taxable years:
2010 ……………. $4,282,000
2011 ……………. 8,418,000
2012 ……………. 7,002,000
2013 ……………. 9,668,000
2014 ……………. 5,219,000
2015 ……………. 3,843,000
For which of these years is Northup exempt from AMT?