TTM20152014201320122011
Restaurant-level operating income (MM)$21.9$21.9$18.4$14.7$11.1$10.2
Restaurant-level operating income growth19.0%19.0%25.2%32.4%8.8%1.0%
Operating income (MM)$74.3$74.3$64.8$58.2$51.3$40.7
Operating income growth14.7%14.7%11.3%13.5%26.0%-1.2%
Net income (MM)$44.1$44.1$38.0$34.1$30.4$24.2
Net income growth16.1%16.1%11.4%12.2%25.6%5.7%
Diluted EPS$1.92$1.91$1.60$1.41$1.24$0.97
Diluted EPS growth19.5%19.6%12.8%14.0%28.2%7.8%

Notes:Restaurant-level operating income equals company-operated restaurant sales minus company-operated restaurant costs, which includes cost of goods sold (food, beverage and packaging), labor, occupancy and other operating costs